Because one's version of being in form is bang average and the other's version of being in form is very good?
I'm not a fan of Tiote at all anymore, but I'd still have him in the team ahead of Colback when both are playing to their current potential. I'd have neither in the team at all fwiw. One's a liability and the other's a nothing player that's had one good match.
Happy to stand by my opinion of him even after he's in relatively good form for a player of his ability.
Not that I was one of the people that said that in the summer, mind.
See for me, I'd play Abeid in Tiote's "holding-role" as I found him to be a more reliable player, FAR better paced and he's less prone to the classic backwards pass that Tiote loves to do. So if that means we have to play Colback in a role next to him, fine, I'm not happy about it - but I'll play him there with Sissoko doing his thing in the center of the pitch as well.
Leading to my next point, De Jong's return will muck things up a bit. But my opinion then goes Abeid-Sissoko partnership central with De Jong as the ACM, being told to get his arse back to help out (which we know AP will do)