It is also a bit cnutish of the club to prefer a winger as a left back when you have a dedicated left back in good form sitting on the side lines even after some good performances in the rare games he got to play.
Agree with that. Young and Shaw should switch their roles - Young plays less and benched, Shaw plays more and start most of our games. We're a lot more balance with Shaw playing at LB. Rotate Valencia and Young at RB.
Maybe the only reason Mourinho plays Young ahead of Shaw is urgency and aggression probably. At times, Young shows more urgency and aggression in games than Shaw, who have a habit of relaxing at times during games. In addition, perhaps to balance it out if Martial is playing, since both Shaw and him tend to attacks the LW space. Young did a lot more cut backs.
Still, Shaw offers a more solid defense and more effective attacking movements when we're attacking. His timing in making overlapping runs are a lot better than Young. Build our future team, play him more. Still, the situation is a lot better than last season whence Shaw is the 4th/5th choice LB after Darmian, Blind, (Rojo) and Young. This season he's our 2nd choice LB.