Samuel Eto'o needs to find some away form, Arsène Wenger should revisit a 2011 defeat and is Felix Magath the right man?
1) Chelsea need their pensioner to enjoy his away-days
A weekend highlight was the sight of Samuel Eto'o feigning a bad back and resting on the corner flag after scoring Chelsea's breakthrough goal against Tottenham Hotspur. Well done to Eto'o for coming up with a routine that made everybody smile and diffused the controversy of José Mourinho's unguarded comments about the striker's age. It was Eto'o's ninth goal for Chelsea this season and all of them have come at Stamford Bridge. Mourinho explained the trend by saying that Eto'o was no longer 20 years old (careful) and, as such, had lost his electric pace. So he needed, the manager continued, to be "close to goal" and, clearly, that happens more at home. Eto'o was not due to start against Tottenham but Fernando Torres's groin injury in the warm-up led to a hasty promotion. Mourinho betrayed a bit of exasperation as he reported that Torres's problem might be small but it would probably mean an absence of, at least, a "couple of weeks." Chelsea would love to have Eto'o find his feet on the road. David Hytner
2) Patience is wearing thin with Demichelis
Surely the time is approaching when Manuel Pellegrini decides that Martín Demichelis is too much of a liability to be included in Manchester City's defence on a regular basis. It was bad enough that Demichelis allowed himself to be turned so easily by Marc-Antoine Fortuné, but even worse that such an experienced player was foolish enough to compound his error by clumsily fouling the striker, thereby allowing Jordi Gómez to put Wigan on the way to a famous FA Cup upset, and it was a moment that encapsulated what a danger the Argentinian is to his own side. For reasons that are not entirely clear, Pellegrini likes Demichelis but, judging by the frustration that poured out from the stands during the defeat against Wigan, that sentiment is not shared by City's fans. At least Demichelis is unavailable against Barcelona, suspended for the foul on Lionel Messi that will probably be the tie's defining moment.
But Demichelis is not the only problem in City's defence. For all their attacking riches, City remain vulnerable at the back against opponents who are willing to take them on. Gaël Clichy's meek defending when James Perch scored Wigan's second probably illustrates why Pellegrini prefers Aleksander Kolarov, who is not immune to the odd dicey moment, while Joleon Lescott, making a rare appearance, was also shaky. Sergio Agüero and Yaya Touré cannot always bail City's defenders out. They must envy the security provided by John Terry and Gary Cahill at Chelsea. Jacob Steinberg
• Match report: Manchester City 1-2 Wigan
• Rösler dedicates Wigan's repeat win to Watson
• Michael Cox: Rösler's ruse keeps Wigan on top
3) Time for Wenger to dig out the 2011 Birmingham video
The FA Cup weekend could scarcely have gone better for Arsenal. A convincing result which required a high level, high tempo performance to see off Everton was in itself a shot in the arm. With Manchester City, who ought to have been the most ominous hurdle, flopping out of contention on Sunday, the route to silverware could not look smoother. However, that was the case in 2011, when they last made it to Wembley. Struggling Birmingham City would be relegated that season, and it was the perfect opportunity for Arsenal to reacquaint themselves with that winning-a-trophy feeling. It ended shockingly, as Wojciech Szczesny and Laurent Koscielny had a simultaneous brain freeze to gift Birmingham the Capital One Cup.
Arsenal's history has abundant examples of choking nightmares as favourites: it dates back to Cardiff City in 1927, along with Swindon in 1969, West Ham 1980, Luton 1988, Real Zaragoza 1995. It's quite a list. Wenger could do worse than find evidence of Arsenal's calamity against Birmingham to play, on slow motion, as some kind of torture warning to his current troops. For if they can master their nerves against Championship Wigan, and retain that focus for a potential final against Hull or Sheffield United, they can at last change the narrative about their totted-up winless seasons. The current squad look hungry for it. They dare not pass this opportunity up. Amy Lawrence
• Match report: Arsenal 4-1 Everton
• Barney Ronay: Özil puts jeers behind him
• Video: Wenger praises Özil after Everton win
• Video: Arsenal can still beat Bayern Munich, says Robben
4) Van Wolfswinkel is making sloppy use of meagre rations
When the time comes to proclaim the most misguided signing of the season, Cardiff's capture of Andreas Cornelius will take some beating – but Ricky van Wolfswinkel is giving him a good run for Norwich's money. £8.5m of Norwich's money to be precise, and advanced arithmetic tells us that that works out at, let's see now, yes, £8.5m per goal. He struck that goal with his very first shot for the club and since then, nothing in 20 appearances. True, he does not exactly have scoring opportunities lavished upon him in Chris Hughton's austere set-up, but he makes sloppy use of his meagre rations. And his all-round play seems to be deteriorating; against Stoke on Saturday his touch seemed clumsy and his passing wonky (mind you, he was not alone in that). He is either chronically short of confidence or badly out of his depth. Picking him seems an act of outrageous optimism. Or desperation, since, of the other strikers, Gary Hooper has not netted since Boxing Day and Johan Elmander and Luciano Becchio don't look like they will ever trouble Premier League goalkeepers. All four of those strikers were signed by Hughton and at the moment it looks like he does not know how to get the best out of them or their best is just not good enough. Or both. Paul Doyle
5) Jones and Smalling to become the new Vidic and Rio?
Was Saturday's central defensive partnership a glimpse into the future for Manchester United supporters? With Nemanja Vidic's departure to Internazionale confirmed and Rio Ferdinand in the twilight of his career, David Moyes is keen to give Phil Jones and Chris Smalling a chance to play together at centre-half to prove whether they are up to the job. Saturday's 3-0 win at West Bromwich Albion was the first time that Jones, 22, and Smalling, 24, have started a Premier League game alongside one another at the heart of the United defence. "I said I wanted to see how they do before the end of the season," Moyes, the United manager, said. "I will be continuing to use Vidic and Rio and Jonny Evans. We know Vida is moving on so we have to take the chance to look at what the younger ones are capable of. The two boys [on Saturday] could easily be the two centre-backs for England in the World Cup. Things can change. I think the future will probably be with Jones and Smalling as the two future England centre-backs. They will certainly be competing with the other Manchester United centre-backs to start for this club." Stuart James
6) Has Lee Cattermole started his last game for Sunderland?
When he's good he's very good but when he's bad ... Cattermole had one of his stellar days against Manchester City in last week's Capital Cup One final defeat but the Sunderland enforcer is still overly prone to the sort of performance he displayed against Hull during Sunday's FA Cup quarter final at the KC Stadium. Booked, yet again, for an unnecessary, clumsy challenge on his former team-mate David Meyler and responsible for two goals scored by Hull – one a sensationally slapdash backpass – Cattermole indicated he is not a player Gus Poyet can trust during the all important Premier League run in against relegation. Expect Liam Bridcutt, recently arrived from Brighton and a midfield anchor Sunderland's manager does trust, to start Saturday's vital home game against Crystal Palace and, barring injury, hold his place. Poyet is correct to describe the Palace fixture as "bigger" than the League Cup final and he simply cannot afford to take the risk of Cattermole either self destructing or losing concentration. It will be no surprise if the team's former captain spends the remainder of the season warming the bench – before being sold this summer. Louise Taylor
7) Is Magath equipped to save Fulham from the drop?
How times have changed for Felix Magath. On the day his Fulham team subsided to deserved defeat at Cardiff, to become even more firmly entrenched at the bottom of the Premier League, one of his old clubs, Bayern Munich, came back from a goal down to win 6-1 in the Bundesliga. The bespectacled German possesses an enviable CV which also includes stints at Hamburg, Werder Bremen, Stuttgart and Eintracht Frankfurt, but does he know enough about the game in England to keep his new charges in the Premier League? The signs are not encouraging. For him to say on Saturday that Cardiff were better equipped for the challenge than Fulham because they were used to relegation warfare was an own-goal as embarrassing as Sascha Riether's. Before winning the Championship last season, the Welsh club were in the promotion play-offs for three years in succession and only missed out by one goal the year before that. Joe Lovejoy
8) Sheffield United can't afford to be overawed at Wembley
Nigel Clough reckons it took half an hour for his Sheffield United team to acclimatise to the FA Cup atmosphere at Bramall Lane in their victory over Charlton and next month's semi-final with Hull at Wembley will be an additional step up in intensity for players accustomed to League One football. However, despite becoming the first third tier team to reach such a stage in 13 years, they have someone within their camp able to pass on experience of such an occasion. Martin Taylor, the club's goalkeeping coach, was part of the Wycombe team that rattled Liverpool at Villa Park in 2001. Wycombe held a side that had recently defeated Barcelona for 78 minutes and finished on the front foot after Keith Ryan had halved a 2-0 deficit. "If the game had run another 10 minutes I think we'd have equalised because it was the year Liverpool won all those trophies and they were knackered," said Taylor. "We weren't used to being in that situation but the longer the game went on the better we got." Richard Gibson
9) Shaw is a talent, but let's give him some room
It has been quite the week for Luke Shaw but, as always with those thrust into the England team, a strong dose of perspective is required. The Southampton defender, who impressed again at Crystal Palace on Saturday, will not turn 19 until 12 July (the day before the World Cup final) and is a very long way off reaching his full potential. Yet after 45 minutes at Wembley, the Ashley Cole comparisons are already plentiful. Not only are they hugely premature but also highlight one of the fundamental problems with the national team: turning the hype-o-meter up will not improve England's slim chances in Brazil. Such pressure can only have the reverse effect. . Alan Smith
10) Tottenham's league position flatters to deceive
Tottenham may sit fifth – five points clear of Manchester United, and Tim Sherwood may have his fans, both in the crowd and the media – but a goal difference of zero doesn't lie. Of course it goes without saying that points mean prizes, but consistently, across the seasons, goal difference is an excellent indicator of where a team ends up in the league. The correlation between points and goal difference is strong, and as such it would be no surprise were, come the end of the season, Tottenham to find themselves in seventh behind both United and Everton. Similarly, Arsenal's title challenge may not be entirely dead yet, but with a goal difference lagging 14 behind Liverpool after the same number of games played, and fully 18 behind Manchester City, a return to the familiar environs of fourth placed should be expected. Toby Moses