In my opinion, Evans should never have been sold at all, but that's for another thread.
I like Keane. Felt it was a mistake to let him go, and I'd be delighted if he returns. The thing is, there are better, but more expensive options in the market, so what should we do? Buy a player who's already top class and slot them straight in beside Bailly, or trust the defenders we already have (who to be fair, have largely been rather good this season), and bring in a young lad who knows what the club is about and trust CB whisperer Mourinho to turn him into either a top player or a respectable squad option (I actually don't know the answer, I'm just posing the question).