The same issues have been on going for the last 5 years. The players still here, that were in the squad 5 years ago are;
De Gea, Bailly, Jones, Pogba, Mata, Martial, Lingard, Rashford, Shaw.
Sell all of these players excluding Rashford, as they are clearly part of an ongoing problem.
De Gea - Past his best
Bailly - Barely ever fit and when he is, he is rash and brainless. Been at the club twice as long as Maguire yet has played less games.
Jones - Barely played a game in 3 years, most injury prone player of all time.
Pogba - Great on his day but inconsistent, Mourinho was right in calling him toxic and his agent should be no where near the club.
Mata - Old and offers nothing on the pitch anymore.
Martial - Attitude problem, lack of effort and an appalling work ethic.
Lingard - 30 this year and not good enough.
Rashford - Seems a genuinely nice guy, is still young enough to reach his potential, and from the academy, so keep him.
Shaw - Had one good season in 8 years at the club and lacks professionalism for the most part. Sell while the club can still get a good fee.