Guly is technically a CM as well as Lallana and Chamberlain starting out in that position. Butterfield can also play there if needed.
I think the next option for CM from the development squad would be 15 year old Ward-prowse...probably not a good idea at such an important stage of the season.
Interestingly if you take 10 points away from us this season we'd be in 8th place, 7 points off the play-offs - so we're doing pretty much exactly the same as last season.