I hope he changes his mind and Evra and our management somehow manage to influence him. Without Pogba, we lose a lot of tenacity, dynamism, mobility, defensive impact in midfield, and most definitely that x factor. None of our current midfielders possess his pace, power, and physicality (none are even close with the exception of a fit Asamoah). Our midfield is somewhat soft and fragile now, and with Khedira, Marchisio, and Asamoah being injury prone, we are literally fucked if we have to line up with guys like Hernanes (if he is still around come September), Pereyra, and Witsel! Pjanic is the only guarantee, and even he isn't reliable defensively, and tends to go missing in games.
We could literally go from one of the most powerful and dynamic midfields, to one that lacks those elements completely in just 2 season. From a top 3 midfield unit that ranked a 9 out of 10, to a midfield that is still probably top 10, but with a score of 7.