#4 United's lack the quality and depth in defence
Manchester United's defence just isn't good enough. It hasn't been the same since Nemanja Vidic and Rio Ferdinand left but what's surprising is that the Red Devils haven't signed a replacement for both those colossal center backs.
This season, Victor Lindelof has been the best of the players for United at the back and Luke Shaw has also impressed. Chris Smalling and Phil Jones have been the same as previous years, they continue to make the same mistakes time and again. If United want to challenge for trophies next season, they need to sort out their defense and also get rid of some deadwood at the club.
The likes of Marcos Rojo, Phil Jones, Matteo Darmian need to leave as they aren't good enough for Manchester United. The Red Devils need a few new signings at the back and they should bring in an experienced world class center back.