McClaren has had enough time to be judged, it's too early to say he's going to turn out to be shite or not but he can and will be judged on what he's done so far, whether you like it or not.
Colback is totally pointless on a football pitch. He spends the game running around trying to look busy without actually looking to get involved and when the ball does get to him he looks for the safest pass possible, which is usually backwards or to the side.
I went for Perez because he's the most exciting player that we've got, maybe one of the new players will come good but for now I'm going with a player who has delivered way above expectation while others haven't.