Yacob is the epitome of the 'enforcer'. He sits, shields and turns over possession as well as the best of them. I truly hope we continue to use him in that role, allowing another CM to venture further forwards and support our attacking midfielder and striker. I think without him playing, we've been substituting by playing at least 2 holding midfielders to cover the role he plays, which ruins us through the middle of the pitch. Couple that with injuries to wingers and it's not hard to see why we've been struggling scoring recently.
I can see us (hopefully) pursuing with Yacob as the single holding midfielder with a box-to-box role being filled by Greg, and the number 10 as Chadli who would bridge the gap between defence and attack. With Phillips on the right and one of Brunt, Mclean, Burke on the left I think we've got a very balanced team.