I agree that this view is a short sighted view, in the long run, it may or not benefit them however. We can't certainly predict how he will do at Man United. However, we need to look at positive side of things. With the arrival of Mourinho, Mata has been on the bench due to him not fitting to Mourinho's style. What is the point of keeping a player that Mourinho does not need? Considering Mourinho will be here for a while (hopefully). Selling it to Man Utd would sound most reasonable since they are giving us the most offer. Keeping Mata would damage his international and overall career as a whole. If he is not sold now, his chance of being picked for Spain Squad at Brazil would be low. He needs game time. Farewell Mata, we love you.