I don't know Celtic as much as you guys do obviously but are they really that bad?
They aren't that bad (this is actually shaping up to be quite a good Celtic team), but they aren't close to Arsenal's level.
They also lack the ability to lock a game down, they will play with a lot of width and try and get the wingers one-on-one with your fullbacks.
Their CBs are slow, their fullbacks are mediocre and they are vulnerable at set pieces.
Meh, Nakamura's set-pieces you don't have to worry about; McGeady can be dangerous from the flanks though.
McGeady still lacks end product and Sagna and Clichy are both miles better than anything he faces in the SPL.
McGeady even struggles to make an impact when Aberdeen face up to him properly.
And Shaun Maloney is an excellent set piece taker. He isn't as good as Nakamura at shooting, but he is very good at putting the ball into dangerous areas.