Possibly Moutinho sits deeper and tackles more than than I recall. If so we need him! I think Biss needs to be given freedom to get the best out of him. It's possible alzate might bulk up enough to play the holding role but not yet.
I'm not sure we need someone quite like that, I think we're short of a bridcutt type, a pivot role if you like to play in front of the defence, break up play, take short passes and move it on. I think Yves could safely rampage then, and Mac and Davy have the attacking quality.