I'm sure it's been said before, but the more I think about it the more I feel AVB was essentially sacked because of a defensive injury crisis. Our defensive record was excellent until Vertonghen was forced out to the left, and then got injured. Kaboul's hardly featured (and that was always going to be a risk after a year out injured), Rose has been out for most of the year and even Chiriches has missed key games. Dawson is the least suited of our central defenders to play a high line. So Walker has probably been the only "first eleven" player in our defence for the past couple of months.
I'm not saying AVB would have had us playing entertaining attacking football if Vertonghen, Rose and Kaboul had been fully fit; but we wouldn't have been shipping so many goals and would probably have a few more points than we currently do. Which would, in turn, have made a showdown between Levy and AVB far less likely.
So it seems to me that our results are unlikely to improve no matter who the manager is; because the problem is with the players (or rather, it's with our lack of fit ones in defence). And once that's solved - either by buying in January or - more likely - by the return of Vertonghen and Rose (and hopefully Kaboul) then we'll immediately become a better side. I don't think that's likely to happen during the next couple of weeks, so Sherwood's chance of proving himself worthy of the role will come unstuck through no fault of his own.