It's well established now that LVG is tactically just shit. Whether it comes to the imposed style of play, obsession with "philosophy" and possession, in game substitutions, etc, the bottom line is failure.

Some players are also to blame, either due to general lack of talent or age and should just be sold.

Carrick - old, slow, finished

Rooney - old, slow, should not be the principle striker, declining for some time.

Rojo - mediocre/substandard

Darmian - don't care about his Italy rep, failed in PL, mediocre/substandard, injury prone

Lingard - zero creativity/zero technical ability

Schneiderlin - overrated, mediocre/no individual skill or competency/zero creativity - not to mention just dropped by the French national team.

Herrera - mediocre

Fellaini - ...

Valencia - time to move on

Jones- stealing a living

Other than that, there isn't a single player in midfield or forward who is a long distance threat, who can shoot with thunderous strength and accuracy. Nobody is good at free kicks or corners.