Maybe. But putting Schweinsteiger on may well be an act of desperation from Mourinho's part rather than by design. But I'm intruiged, Pogba + Schweinsteiger could form a good and balanced partnership.
Putting some old player alongside pogba is definitely not going to make things work. Schweinsteiger has long passed his top form and he is definitely not going to put any difference on the squad even if he play alongside with pogba. Thing is they do need to find better midfielder to partner him with pogba
Seeing how desperate Man United is, it's definitely worth a try. And Schweinsteiger has a few years left in his career so it would be unfair not to put him into consideration. Plus placing Pogba along side a more senior player does make sense as Pogba, as skilled as he is, is young and still inexperienced in some ways.
If Man United plans to sell the German in the January transfer window then it would make sense to let him play a few games.