I agree with the person who said they would like to see him in the lingard role. He's unique. There are very few players who have ever been like him. Creative, athletic, big, strong, great passing range and good dribbling. Offensively he's as complete a midfielder as you can have. But he lacks the discipline, positional awareness and work rate to play this role. Furthermore, he does not seem willing to play in a 2 and i honestly feel he sees himself as an attacker as he goes forward more times than Yaya Toure used to for city. I don't blame mourinho for not knowing how to use him as there has hardly ever been a similar player. He reminds me of Ruud Gullit and I feel we should use him the same way. Milan used Gullit as a second striker/attacking midfieder who constantly roamed or a right sided attacking midfielder. Mourinho used him like this in the Chelsea game and we saw Pogba being able to dribble from deep, having enough time and space to influence the game without the heavy defensive responsibilities required of him in midfield. Essentially we can switch up the formation. In addition, Mourinho can used him the way he used sneijder and deco. Allowing him to roam and pick his passes. Benitez used Gerrard the same way and that was Liverpools highest finish in the league under Benitez.
If i were Mourinho, I would go back to the 4222, not only because of Pogba, but also because of Lukaku. As united do not have wingers who create width, and personally i feel both Martial and Rashford are strikers, this would benefit the team as a whole. If we can sign a midfielder willing to stay in midfield with and ability to press and pass, it will allow pogba and sanchez to create, and possibly bring out the best in Pogba and Lukaku( who is seriously lacking service).