#3 Depth in midfield
Much has been said about how United’s midfield players under-performing in recent times. This season should be quite different because Mourinho will have ample ammunition to unleash on opponents depending on the approach he chooses to go with.
There are as many as 7 potential starters - Fellaini, McTominay, Pereira, Fred, Pogba, Matic, and Herrera. This doesn't take into account academy players and versatile players who could still make a case for their inclusion.
Although a number of them were absent during the tour due to World Cup commitments, when the full season starts it will be a headache every coach loves to have.
With as much as four competitions to participate in, player rotation will take full effect. An enviable set will jostle for a right to play in the famous United shirt, and the preseason tour has given us a taste of what to come next.