I think the main factor for Manchester United is the team coach. Erik Ten Hag, who showed unsuccessful management, is still with the team. Chelsea, on the other hand, dismissed Pochettino from the team despite his outstanding performance at the end of the year. I think Manchester United has more stamina towards the coach. I think if he leaves the team, United is a team that can have more successful matches with a better coach.
With Manchester United I have always been of the idea that the coach has got a major part of the blame to bear because most obviously he's attitude towards the management of the team has been of a very great impact on the team they ahs caused the team the level at which they are currently. For Chelsea I'm still believing they know best why they go their coach who was beaming hope of revival for them.
To be honest, I was thinking that I was the only one who wasn't satisfied with the performances of Manchester United manager Erik ten Hag since he became the club manager but I'm glad that some other persons are now pointing out his shortcomings since he became the manager of the Old Trafford club. I expected the club management to sack him after the teams last game of the season which was the English FA Cup final where he bragged about winning two trophies in two seasons. To me, I feel Erik ten Hag doesn't know the status of Manchester United which is why he's okay winning the league cup and FA Cup in two seasons.
They play in the UEFA Europa League competition next season and have made some good signings this summer so I don't think the Dutch manager will have any excuse if he fails to have a good campaign with the club next season.