I personally think we are crying out for a new central midfielder, Thomas and fleck just aren't effective enough to provide a link between defence and attack, the one good ball in five just doesn't cut it. They never seem to boss games or really impose themselves which leaves us so 1 dimensional.
I agree, I think Fleck, O'Brien and Thomas are similar players. All seem to be happy to play the game in the centre circle and don't break forward enough.