When will Vardy stop scoring? When will Aston Villa score? What on earth has happened to Swansea? So many questions, so few answers. Here’s 5 things we did learn:

1 Memphis gets the engine running again

It was painfully predictable, yet it still happened. Memphis Depay, out-of-form toiling winger, went and scored himself a goal and acquitted himself far better when playing through the centre. Remind you of Raheem Sterling briefly last season? A handy Ander Herrera cross was finished by the Dutchman for the opener, yet they were fortunate to leave Vicarage Road with a win – which came via Troy Deeney’s intervention with his posterior.

It wasn’t just Depay’s shift into the striking role that was the sole cause for the improvement. He seemed far more willing to make runs to disrupt an impressive Watford defensive unit, while Jesse Lingard did the same around him. Whether Depay’s form will decline if he reverts back to the wing is worth considering. The more worrying thought may be that United’s attack may have been more due to addition through subtraction as captain Wayne Rooney was absent for the weekend. Worth pondering before they travel to league leading Leicester next week.

2 Manchester City fold again

We’ll get to Liverpool in a second, but Manchester City sustaining a second 4-1 loss to another resilient opponent is just as big a story. As usual they kept possession well, but against the younger, more athletic teams such as Spurs, West Ham and Liverpool, City are getting beaten up. Some of it is explainable, Demichelis’ weak point is obviously pace but Eliqium Mangala was billed as a physical specimen in defence when he moved from Porto. If he couldn’t handle Liverpool’s runners, what exactly is his purpose in this City squad?

Despite the piles of money that has already gone on the squad, there still looks to be a rebuilding job next summer at the Etihad. The truth is, it’s going to be really hard to build around — with those springier teams in mind — a slowing Yaya Toure, David Silva and Sergio Aguero. None of those three are good enough on the other side of the ball, at least not to sustain a trophy challenge on multiple fronts. Raheem Sterling and Kevin De Bruyne initiated the much-needed youth movement. Now Manchester City must go through with it.

3 The most fun teams in the league? Not who’d you think

Claudio Ranieri has built the most fun team to watch by gearing the team towards attack. The attitude towards defence? “We can try, I guess.” Leicester have 48 goals and goals conceded combined (which admittedly is a bizarre metric), which would rank 1st in the league if it was actually a real thing. They’ve scored in every single game this season and the narrative surrounding Vardy with his incredible streak hasn’t hurt either.

Outside of the East Midlands, the fictional award for second most entertaining is hotly contested. Crystal Palace weren’t quite themselves on Monday night and surrendered 3 points to Sunderland, but when their wingers are firing few matches are more fun to witness. The Yannick Bolasie factor is also very significant.

Merseyside has two flourishing sides that can explode for goals on any given weekend. Liverpool occasionally still choke to a relegation candidate and Everton under Roberto Martinez are prone to have a defensively-lacking dud of a performance once every two months or so. Generally though, tuning in to the Scouse supported sides will be entertaining.

Honourable mentions go to West Ham, who just can’t be trusted enough to turn up to games against non-elite teams.

4 Norwich showing difficulty of being mediocre on both ends

Often the secret to surviving the Premier League is discovering the team’s identity and doing so quickly, then playing to maximise it. More often than not, it will be a stout defence and midfield such as the one Watford have shown off so far. On the other end of the spectrum could be a team like this year’s Bournemouth, an overmatched but fluid attacking outfit that gives itself a chance purely based on scoring ability, although injuries will sadly deny us of seeing Bournemouth’s full potential. On occasion a more niche team emerges, such as Swansea with a suffocating possession-based style or Stoke, who came armed with Rory Delap’s long throws and not much else.

The main problem with Norwich is finding their identity. The trio of Russell Martin, Sebastien Bassong with Alexander Tettey shielding the back didn’t function well enough two years ago. It hardly seems the added experience will change that. Going the other way and it’s a similar story. Wes Hoolahan is good and Nathan Redmond has noticeably improved since his previous top flight exploits, but neither can carry the East Anglian club without a reliable striker to look for. Dieumerci Mbokani, as odd as this sounds, could make or break Norwich’s season.

5 Andy Carroll is redundant in Slaven Bilic’s current team

The Hammers were thoroughly outplayed by an increasingly frightening Tottenham side, but their cause was harmed by Andy Carroll being the outlet for what looks little more than a hard-working, diligent side without the services of Dimitri Payet. Bilic will most likely be better off slotting in someone like Mauro Zarate to pair up with Diafra Sakho in future, after witnessing a lumbering Carroll fail to keep up with the pace of the London derby.

It looks bleak for the former England international, who seems to deal more harm than good to this pacy iteration of West Ham. That is, when he can step onto the field fully fit which has been an alamingly rare occurrence since his permanent move to South London. After seeing their blunt, fruitless effort on Sunday evening, West Ham join a growing list of clubs that will be willing to take a pricey punt on Charlie Austin, in a bid for goals.

Harry Wallace is a Leicester City fan and Fantasy Football enthusiast. Both have been known to be unsuccessful at times. Keep track of his football related thoughts on Twitter.