Well we will need to give him a full season or more to really give him a proper chance. It's more than understandable that it's going to take any new player time to settle into the team, but that's not really the worrying thing with him, it's his application, or lack of. It was mentioned at Man City by Mancini and it's already been mentioned here by Houllier, and it's been fairly plain to see when he has played. The guy needs to grow some balls and develop a bit of mental strength, the quote seems to ring true about him being in the top 5% for talent, but the bottom 5% for mental strength, unfortunately you need the latter more than the former to be a top class player week in week out.
I'm not surprised he is 'sick' yet again either, just before a big match.