Tolerance is the problem here because if some other teams can tolerate a coach lapses others who are deeply in a competition of growth might not give a second chance to the coach because they might be feeling that the longer the chance is more damage is going to cause them so cutting it when the time is extremely close is the best so that they would look for another capable hand to adjust it so actually that's how I'm just seeing this whole thing but however it was Bayern Leverkusen mistake for not knowing all this before signing considering his previous profile so actually they shouldn't act as if they didn't no about him.
I think this is the right decision made by Leverkusen management, they took quick steps to build the team in a new direction because it was clear there was no progress whatsoever with Ten Hag even the Leverkusen team was much worse after being coached by Ten Hag so even though it was only the beginning of the season but I think this decision was quite right even since the beginning of his arrival I was very doubtful because Ten Hag was a failed coach in the past so it was difficult for him to find his confidence again.
Perhaps patience was never what they had in common with Manchester United because in Manchester United even if they just signed a coached now and they played 10 matches without wining they will never have the thought of sacking the coach because they would always think of giving him the whole season to see whether he can change so perhaps that's why when they fall it takes many seasons to come back because of the extent at which there fall had gotten to but Bayern Leverkusen on the other hand doesn't want to get too bad before they can start seeing the coach faults.