Tottenham's excellent win at Old Trafford gave the fans plenty of food for thought.
Here are five things we learned...
Adebayor proved that he should have been in the first team under AVB
The four goals in five games the former Arsenal striker has scored is testament to the fact that Andre Villas Boas continued to ignore a player that was not only arguably the best attacker in the squad, but also someone that would bring the best out of the team as an attacking unit. Adebayor didn't have the best season in terms of goalscoring last year, but he was involved in a lot of the play that led to Spurs goals. Since coming back in to the team this season he is scoring goals and aiding play in the entire final third - what was actually missing in those games when Soldado was being criticised for not scoring.
Eriksen is beginning to look a class player
After a promising start to his Spurs career, Eriksen struggled to impose himself on games in the way many had hoped, before suffering an injury that further hampered his bedding in at the club. The last couple of games have seen the Dane impress in a left midfield slot that sees him a drift a little more central, and influence the game from his favoured position. Unlike Gylfi Sigurdsson, Eriksen is very much two-footed, which means that he can either score screamers with his right foot like he did against West Brom, or deliver pinpoint crosses like for Adebayor's goal against United. This kid is only going to get better and better.
Sherwood seems to be delivering on his promises
The new Tottenham boss promised to deliver exciting and attacking football, something that had been missing at White Hart Lane under Andre Villas-Boas. And so far he has stuck to his word, with performances improving all the time and the team looking a much more potent force going forward. What's more, both midfield and defence have looked significantly more settled in the last couple of games, and the midweek results leave the club just two points off the Champions League spots.
And his faith in youth doesn't look like backfiring
It takes a brave manager to include young players in such an expensively assembled squad. But when that manager has spent the last few years watching over their development, he knows better than anyone in the country who is ready and who isn't. Sherwood has been more than willing to involve players such as Nabil Bentaleb and Harry Kane in big Premier League matches, something that other managers would have been more likely to do in lesser competitions. And so far they've only resulted in success, with Bentaleb in particular coming out of nowhere to look like a player of real promise.
Do Spurs really need a new left-back?
Playing Christian Eriksen in that left midfield spot, where he has license to move inside if he likes, allows left-backs with pace and energy to bomb forward and essentially double up as a winger. Danny Rose is still a developing player, but against United he recovered from a difficult start to impress both in determined defence, and when joining the Spurs attack. Sherwood may be happy to persevere with the former Leeds man rather than bringing in an expensive new player, or bring in someone to play back-up to Rose. How Rose performs in the next two or three games will indicate to Sherwood just what he will need to do.