That's a bit unfair, van Gaal said in his pre-QPR presser that he didn't feel Welbeck was at the level he wanted. What was he going to do, refuse to move and run out his contract playing as fourth choice completely stagnating his career? If Arsenal are saying they want you and the club sanctions the transfer, you aren't going to say 'no thanks, I'll play for Newcastle or Villa because the United fans won't like that'. I'm sure Danny would have wanted to stay his entire career at United, but if the manager's telling you that you aren't going to make it, it's foolish bury your head in the sand.