Pogba, Mata, Mkhitarian have proven pedigree. Rashford and Martial a lot of promise.
In Valencia, Herrera, Bailly et al there is the makings of a good supporting cast.
Ibra will go at the end of the season, probably along with Rooney.
A new attacker along with a Vidal / Keane type in midfield and another CB will see them much improved.
Of course this is all assuming Mourinho gets his shit together, which doesn't seem to be a forgone conclusion any more.
So no "top" players then?