No surprise that the Momo/Marchisio combination isn't looking too clever. Its a vital part of the team, an engine room of a 4-4-2, which we must get as Right as possible. Not sure what Melo can do, but if he is happy in heart and focused in mind, he may be wicked alongside Marchisio.
I do wonder what Delneri is looking for in the centre of midfield. Poulsen leaving and Ekdal sent on loan, with Tiago also on his way out. Those are three midfielders who are at least OK on the ball. Admittedly, Poulsen just keeps things simple, nothing creative or wonderful, but that is a damn sight more than Momo is capable of.
As others have said, we need more than just tacklers in the middle of the park...