I think Manchester United cannot continue to waste money trying to bring in the players that Ten Hag wants at the moment, because since Ten Hag coached Manchester United, they has spent more than 600 million euros to build the squad, but in fact Ten Hag has not been able to meet expectations from Manchester United fans and management , firing Ten Hag might be a better solution for the Red Devils before they get worse with Ten Hag in the future.
If Ten Hag is incapable of doing his coach job well, spending more money can not help and the fact is they already gave him so much money to buy players he wanted. The return is small while cost is huge in spent money and poor results as well as rankings they got last two seasons.
Ten Hag needs to feel satisfied with players he has now and understands his situation that no more money will be given to him for purchasing new star players in this season in January. If he can not does his coach job better, he will be fired. That time must come no matter how patient Manchester United are in treatments to the coach. When Manchester United want change, they will fire Ten Hag as he was given abundant money for player transfers and enough time to perform and prove his ability.