Put a side the 3 man midfield talk (which i have been advocating a lot these few days
). The Spurs and Newcastle performance from Pogba was disgraceful. He actually played much further up the pitch(not that it benefitted us with the lack of balance), while Lingard tried to help out in midfield, but Pogba didn't bother to help Matic, which rightly made Mourinho take the decision to sub him on both occasions. My question would be: Is Mourinho telling Pogba he can go drift forward a lot and Pogba maybe takes it too literally? That sounds a bit ridicilous between a manager and player that they don't know to communicate properly on what the player actually should be doing. If it's Pogba playing the big man and just ignoring Mou's tactical instructions, which his attitude could maybe imply, then i'm inclined to say get rid.
Yes Pogba can play in a 2 man midfield, of course he can we have seen that plenty of times. Will we get more out of him in a different setup? I think so. But the Spurs and Newcastle, possibly Stoke too as we were overran in midfield in that game despite winning 3-0, should be looked at in one isolated situation. Something has changed Pogba's mind, and now he doesn't seem to budge on him playing freely, without too many defensive responsibilities.
I honestly think Pogba deserves to be dropped if Mou doesn't want to cater to his needs, don't persist playing him in a position where he won't bother doing what he is told.