The big problem for them is that players like Pogba, Mkhitaryan, De Gea, Martial etc, aren't going to hang around if they don't play in the CL.
I don't even understand why Mourinho bought Mkhitayran, he is too much of a flair player for him, but players like Poigba, Bailly and Ibrahimovic suit Mourinho's his style of play.
The board at Man U don't seem to know what they are doing, and this what happens when people who don't much about football are running a club, and what worries me about who is going to choose our next manager when Wenger retires.
If it is Kroenke or Gazidis, we could be in the same situation as Man U.
Personally, I still think Man U will be challenging for the PL at the end of the season, along with us, Man City, Liverpool, spurs and Chelsea, but they are certainly making hard work of it and have also completely outplayed two opposition teams this season, having around thirty shots without winning.
So it's not like they are playing any worse than other top teams, they just can't score.