NAH. Its pure bollocks. The notion that one player, a forward made the team worse is just too idiotic for words. Its the same dumb argument people made about him at Juventus. Yet he left and they last season ACTUALLY got WORSE!
Its fairly obvious to anyone with sense that most of the incumbents in the side downed their tools when the coaching staff tried to implement a more offensive strategy at the start of the season, with the vast majority of them not bothering to help out defensively let alone follow any tactical instructions. Rashford, Bruno, Martial being prime examples. Not to mention the likes of Maguire, Bruno and Shaw having shocking dips in form. That is why tue tram fell apart.
To try and blame it on a newbie 37 year old , who was forced to carry most of them all season, even when he should have been having breathers but couldn't, because they just were not bothered is ashaming. He did what he was BOUGHT to do. Score goals. Especially important ones and winners. The team got worse strictly because most of the rest started the season not giving a shit and by the time a Rangnick took over that habit was too set in stone to reverse gear for most of them.