The Manchester United project was a disaster from the word go. Look at how many of his other teammates have left due to a string of poor performance, irregular play time and a team that is not showing any signs of improvement any time soon.
I think he will do extraordinary things at Real Betis. He was even so close to acquiring a European trophy with them last time round.
That is true for almost anyone who played at United. In most cases whenever a player leaves them, ends up playing much better at the teams they go to. In few cases that wasn't the case, but its mostly true, and whoever goes there ends up playing worse. With exception of their managers, Mourinho, Ole, ETH, all got fired from their jobs literally in span of a week, which shows that they do not know how to pick good managers.
But players are not really feeling like they are the guilty ones, when you put them in a position that they care and play well, then they do, at United the mood is really terrible and doesn't look like they are going to get any better. I personally believe that for United to get better, they should make that sale to 10 billion dollar offer guy. Antony will be awesome at Betis, he looked great last year, and almost even won the cup for them, and it was unlucky that they failed. Still, that shows they have a chance to play him and finish at UEFA leaves at the league, possibly conference only but that's okay.