I think the Chelsea owner should be patient with the managers, if he believes that developing the players is simple, why can't he choose to train the players himself? Chelsea has the Premier League youngest squad and wants to win every trophy. If I am not wrong, I don't believe Chelsea has any players above the age of 30 in their current squad, they are only signing young players, and the management expects them to win trophies. In my opinion, this is why Manchester United did not fire Ten Hag, they are afraid of having a bad season like Chelsea.
However, despite how badly Manchester United performed last season but did not fire their coach, management is still pushing to offer Ten Hag a long term contract because they believe he will bring good outcomes to the club. Chelsea management must be patient with their managers, if you believe that the coaches they fired did not produce positive results for the club, I disagree because we saw how Pochettino turned things around at the end of last season, but Todd Boehly believes he is not capable of managing the club.
Ten Hag has an ace up his sleeve, no matter how bad United's seasons are, they get trophies, and I'm almost sure that if Pochettino had brought at least one trophy, he could have remained Chelsea coach. In addition to the fact that ten Hag was allowed to remain in the team, I see that Manchester United is also now trying to be very active in the transfer market, they are negotiating with Bayern regarding de Ligt, they are interested in the Girona defender, the PSG midfielder and the Roma striker, I mentioned this in general because this is for now which is only at the level of negotiations, but this shows that ten Hag received approval for additional transfers, which means the management trusts him.
I don't know if Manchester United would benefit from adding players to the squad that Ten Hag likes. In the last two seasons Ten Hag have spent big to add Antony and Hojlund to the team. And we have yet to see a better performance from these two players. Manchester United has taken Antony 96 million and Hojlund 75 million in the squad.
Manchester United are looking to make several big moves next season. But whether these players can do well with United's squad with the help of Ten Hag remains to be seen. Ten Hag's match strategy is not good. He is somewhat monogamous. Ten Hag's relationship with the players is also not good. So I feel that despite spending a lot of money, we will not see the expected performance from Manchester United next season.