Why do coaches get sacked over poor performance of players?

[len01]

regarding the Mourinho case, I hope you don't read from one source but look for the most confirmed source.
when a club has a problem, especially if the problem is with a star player or a popular coach, many media outlets will exaggerate the problem by changing the true story.
and in my opinion Mourinho case of leaving Roma is because he is no longer able to handle a team that cannot get the players that Mourinho wants so improving the team's performance will be very difficult. on one hand, Roma financial condition is in a slightly bad condition so Mourinho is not there allow to bring in players at high prices.
If the players really didn't like Mourinho, he should have been fired from that time, but in fact Roma's performance last season was still fine without any problems.

the dismissal of a coach cannot be predicted whether it is because the players don't like the coach or the management doesn't like the way the coach works, but what is certain is that as long as a team doesn't make any progress, management will definitely fire the coach to save time to immediately find a new coach who is capable. to improve the team's performance.

[LDL]

A coach tries his best to shape the team's squad but it is not unusual for the coach to feel bad if any player in this squad performs poorly. If a football squad is lined up in a 4-3-3 format, any player performing poorly in any one of the formations can definitely lead to a lack of performance in the squad. In that situation, there must be extra pressure on the coach and the coach has to perform extra responsibility to change and expand the squad. So for now I will not neglect the responsibility of the coach according to the team instructions to allow any negative influence on the coaching of the coach.

[Albarq]

From my point of view, coaches and players both need each other. Because in the field of sports, it less harmonious, sometimes coaches force their players too hard, things that are difficult make communication between players and coaches less good and this creates an unfavorable gap on both sides. criticizing each other about each other's shortcomings is actually a normal thing because coaches and players have personalities that cannot possibly be the same. In football, it is actually the coach's responsibility to take care of which players he will choose for the match and it depends on the education that is applied so if the performance bad players, coaches can be affected.

[Yaunfitda]

It all depends.  Coaching absolutely matters in terms of player performance.  I've seen it time and time again no matter the sport that the same team with different coaches performs differently.  For me one of the key attributes to coaching is not individual performance but getting your team to play together and identifying and utilizing the strengths of the cohesive unit.  And not that it should be like this at the professional level but being able to motivate each player is on the coach to enhance as well.  So yeah if players don't play well sometimes it's on the coach.

Coaches tenure are not well secured, not even in any league. You might bring your team into a championship and win. But if in the next season the team fail, the thing one who are going to take the blame is the coach himself. So I'm not surprised by it, I'm not saying that it is a practice, but usually that's what is happening in any league. First, they are the leader, they are the one who bring this player into unison and just focus on one goal and that is winning. If he fails then the management will have to find a new one as the players are not responding to him. Second, if ever he brings the team into a champion, and then the next year he failed, then his system is no longer working and maybe the management will also find him liable so he will get sacked despite what he brings into the table the previous year.