Re. The Andy Mitten article
My sympathies are/were more with Nani, and United's urge to cash in on him rankles a bit, but this bit puts a different light on the discussion
"The coaching staff question his decision making during matches and his attitude. The staff could work with Cristiano Ronaldo’s huge ego because he was the best player in Europe in 2008. Nani is not; he continues to exasperate, not follow instructions, nor learn from past errors. He’s not as committed as Ronaldo was in training (few are) and seems incapable of absorbing the necessary information."
Aside from contract spats and any other issues, if the coaching staff/Fergie are ready to give up on Nani I feel it might be unavoidable if the above is true. Personally, I love Nani for the way he play the game, but if the whole package isn't there then that's a problem.