I think he judges games very well and would give us the tactical flexibility we need. I've been nothing but impressed with him so far and think he'd do great things with our squad.
But you can't fully know if a manager can translate that judgement from managing a small club, to a bigger club. Thats why its a gamble as its much easier to have the leeway of less expectations then it is with greater expectations.
I'm not suggesting he shouldn't be talked about and is certainty a contender ahead of Capello or Rafa but I would much rather a manager like Hiddink or Redknapp (that type of appointment).