Building a team around Pogba is actually the worst thing you can do. He's so inconsistent & unreliable that if he's in such an influential position, the team will be as inconsistent as him.
The ideal team for Pogba is where he's a complete fringe player. Where he's not one of the team's leaders, they're a top team without him and when he has a great game it's the cherry on top of an already great team. Also, when he has a terrible game it doesn't cripple his whole team.
He's not a leader, he's not reliable so you can't have him as a key player. Unfortunately United have paid him (and paid for him) as such. So they have a problem.
Time to move him on and make him someone else's problem.