Marchisio is coming from a very important injury, he'll be 31 in january and the pressure that will be on him to fix this midfield is big.
Absolutely must let him come back slowly, and dont expect great performances right away. Have to wait to see if his athleticism was affected.
Of course it's a different situation, but I've been talking about Asamoah's lack of athleticism for a lot of time. And this is fundamental for a DM, specially for a great DM, as Marchisio.