Well it hasn't worked out for him at Madrid, as has happened with many quality players in the past. He would look for a move to us to play reguarly and prove he has still got the talent, which I'm not doubting, or infact stating I don't want at Villa, but once he plays well for us and the bigger Champions League teams or richer teams (Man City) come sniffing he would be up and off again.
In response to where, there are plenty of answers to that question. A move to Italy perhaps? Or Bayern in Germany? 2 leagues he hasn't been to yet. Or maybe even City if they decide they need even more centre midfielders. There are plenty of possibilities for him to use us as a 'stepping stone'. I might add though, as others have stated, I dont have a problem as long as he gives us quality service and effort. Not that all this matters as we won't sign him
havent you just described every footballer? every club is a stepping stone to something bigger as we have just seen with Milner. At least with Diarra he has previously been honest about it, id rather know where i stand and benefit from a player in the short term.