You're right about Jose's transfer records. He knows what he wants especially in his second transfer windows.You really need to check out Jose's transfer records. He hits far more than he misses. My thinking is that if he really wants Silva, he would have done his homework on the guy. Moreover, transfers are always risky because you can never really tell how a player will turn out.
But having said that, Silva really looks like the real deal. I like the lad a lot. If he settles in well at United, he could become a real hit.
I'm not sure Jose would be intersted in Silva though. We already have 3 players with very similar style of play. He might be an upgrade but he doesn't bring anything different really.
Also I personally think Monaco are punching above their weight. The manager has made all of them look like world beaters. I am a little sceptical about the players replicating their performance in another setup.