Pogba created the heat with his constant comments. Mourinho wasn’t criticising the players this season and gave Pogba the armband.
So I was wondering is it really because of Pogba though? After all neither Juventus nor France had ever had issues with the player. Conte is the closest successful manager I know to good old Keano and he loved him to bits. So lets analyse the other side
Mou mismanaged Lukaku, De Bruyne and Salah at Chelsea. He seem to have issues with Pogba and Martial at United + he was very close to ditch Shaw as well. Regarding transfers he ditched Mkhitaryan after previously signing him up. He is interested in a new CB despite buying Bailly and Lindelof which probably means he isn't really keen on those either, while Sanchez (top talent at Udinese, Barcelona and Arsenal) is playing dog shit under him. If you add Pogba to Mou's transfers that went horribly wrong list then that's around 40% of his transfers with us.
But that's not all. The man had problems with Chelsea's technical director, Chelsea's owner, Chelsea's doctor, United's CEO, some of the class of 92, a Real Legend (Iker Casillas), Inter's legend (Etoo) who sweated blood for him and two of United's top players (Martial and Pogba). Real players weren't too bothered to see his back, he lost Chelsea's dressing room, he also lost his no 2 and he had just been humiliated, at home, from one his protegees despite the latter having a championship side at his disposal. Ah and I almost forgot, Diego Costa kicked a bib at him, he had a bust up with Wenger and he was caught on video poking Vilanova in the eye from behind. He even had arguments with possibly the most talented and professional player of our generation ie Cristiano Ronaldo and had the cheek to say that there's only one Ronaldo ie the fat one who stayed out for an entire season on his club payroll only to turn things around during the WC. Which isn't really surprising considering that he had the cheek to say that Paul Scholes (remember the guy, red hair, no agents, never even considered leaving United) criticised Pogba because he's jealous of the money Pogba makes.
This is the sort of man Pogba and our players are having to live with.