Pogba is more of an entertainer, a showman, a play to the gallery guy. He is big on how he is perceived and focused on creating a powerful personal brand. You can see that in his attention to hair cuts, his social media activities and his football. This is why he tends to overcomplicate and attempt 'wow' moves regularly.
What Pogba is not, is a leader on the pitch. He is not a 'general' or a dictator or, if you prefer, a talisman. He is not that best or main player on the pitch who inspires championship winning team performances. Unfortunately this is what the club, the fans and the manager expect him to be at United. It is even what the press, pundits and opposition fans expect him to be. I believe this is one of the major problems the United team has.
To get the best out of Pogba, we may need to deploy the Juventus model. Fill the team with leaders and match winners. Let Pogba be just one of the stars. He seems to have had his best periods in football when surrounded by leaders like Chiellini, Bonnucci, Pirlo, Vidal, Buffon, Marchisio, Evra, Tevez etc. Players who can rally the troops and or change games almost single handedly. If we want to keep him, this might be the only model that will work.
Pogba can't handle the current United scenario where he is being expected to provide leadership and be the talisman. Maybe he can grow into it, who knows? But there are certainly no guarantees and if we want to wait for him to become what we expect, we must not complain when the evolution process is not as quick as we desire. Otherwise, sell him now.