Chelsea should be able to put trust in every coach they employ, like Ten Hag at Manchester United and Arsenal with Artata. Not all coaches are able to do a great job in just one first season, even if it is not impossible, it will be really difficult because of the adaptation process.
Chelsea is completely different from other elite EPL club. They're strict when it comes to their managers and not welcoming any relenting outcomes. Erik Ten Hag in Chelsea? He would have been sacked long time ago. The previous owner, Abramovic doesn't welcome any relenting efforts or if he sensed any form of incompetence from the headcoach, he will definitely make good use of the sack letter.
Could it have also been that since Abramovich left Chelsea, their performance have been declining? They had their best season some years back when Abramovich was still the owner of the club. Maybe those strict rules made managers to perform above expectations to keep their job at Chelsea and the club was truly shining during those periods. In as much as some of those sackings aren’t so warrant, I think we should respect the decision of the owner for what they want for their clubs, because those are what keep them in the game to keep shining and also be on high demand in business terms also.
If Ten Hang is in Chelsea, he would have been the least serving couch in the club if his performance will be as same as it is now in Manchester united. I like how Abrahamovic was making good use of his sack letter because some of these couches are just there to earn a living without impact on the club development. Todd is too calm and tolerate what shouldn't be tolerated in order to maintain the standard of the club.
We can’t be so sure that Eric Ten Hag if given the position of the manager at Chelsea won’t perform well. In cases like this, it depends on the atmosphere and environment these coaches find themselves that they’ll put in effort to make the team prevail amongst other clubs. If Ten Hag is under a more strict management, he might have done better than what he’s doing now at Manchester United if he was in Chelsea as their coach. Ten Hag is not even an option for Chelsea to consider, so let this comparison just slide by and see how the new coach will do in Chelsea.