Brutally honest..
De Gea and that is about it. If we are viewing United as a top European team which should be competing with likes of Barca.. he's the only truly world class player we have.
Now obviously that is taking it to an extreme but guys who I would like to be part of our starting XI in the future and ones I think can be part of a successful United league campaign if managed correctly are..
DDG, Valencia, Bailly, Pogba, Mkhitaryan, Martial.
I'm taking Zlatan out of the discussion as he is not a long term figure for this club. But in an ideal world those 5 players would be part of a successful side in next two years but when you consider that Mkhi and Martial have such huge question marks over them .. we are in a precarious situation where the number of players who are actually playing really well is probably just Valencia, Herrera and Zlatan. Everyone else is hit and miss.
That is nowhere near good enough for a United side.
Back in 2008, you had the entire defence playing to world class standard and Brown in the form of his life.. Carrick and Scholes were excellent (slightly below par compared to 2006), Ronaldo to world player of the year level, Tevez world class, Rooney solid and guys like Nani and Hargreaves put in some really strong performances when needed.
We are so far away from that standard at the moment.