I’ve seen many fans and pundits make this claim. Do you think Manchester United players aren’t playing as well as they can in hope to get Ten Hag sacked. I’ve seen this argument used against Rashford as people since he’s got his new contract he’s just content to get his money and play as well.
Though Hoijund has claimed the players all back Ten Hag still https://www.theguardian.com/football/2023/nov/09/erik-ten-hag-manchester-united-squad-backing-rasmus-hojlund
No, takes like that forget these people are human. You hire a personal trainer that ask you to go diet and train every single day and then however many months later you’re no better and tell me your work rate and effort is the same as day 1. You might want to keep it up, but you simply can’t bring it.