You should know that Erik ten Hag was successful in his first season at Manchester United, because Erik ten Hag managed to make Manchester United finish in third place in his first season. Therefore, even if, for example, Erik ten Hag was at Chelsea and was successful like that in his first season, then of course Chelsea would not sack him either. Unless the team finishes outside the top five, then of course Chelsea will immediately fire their head coach when the league is over. But indeed, Chelsea also looks like they are making a big effort to get the right coach but unfortunately, Chelsea wants quick success, because Chelsea doesn't respect the process.
Chelsea performance this season is certainly beyond the expectations expected by the current management, so it is not surprising that Pochettino was sacked Although able to make Chelsea finish in the Conference League zone this season, Chelsea of course are now starting to build a squad with a strong foundation and also rely on young players so it is not surprising that Todd Boehly as the owner of Chelsea budgeted a lot of money to recruit talented young players, not only young players, but now also Chelsea are starting to trust their long-term project to a young coach who does have a lot of experience.
Pochettino dismissal certainly indicates if the Chelsea owner is not satisfied with Pochettino performance, and we can say if with the big money that has been spent by Chelsea so far, of course the level of the Conference League zone is not what they expected, it seems that Chelsea management next season has high expectations and of course they want to get instant results and maybe even if Chelsea new coach will not last long at Chelsea if he Unable to meet the targets implemented by Todd Boehly.