Well that's the problem, the Chelsea owner does not give the coach the opportunity to build a squad in the long term and they want to see instant results even though they must be able to take examples from the last 2 seasons and at the same time prove that money does not guarantee a team's success. If Chelsea want to build a young squad then they have to give the coach more time at least 3-5 years as happened with Arsenal and Liverpool, as we know Arsenal's performance continues to improve from season to season and I think this season is the time for Arsenal.
For somebody that wants his club to get better i don't see a reason why he should not sack who is not performing the management as the right but the case of Chelsea is becoming something different because they are always sacking their coaches, and that instant result that they want they won't get it because the club needs more time for them to get results, but since they want a quick one they will keep sacking and I can bet you that they won't get results if this is what they want to be doing, because no coach will be good for them. Two seasons and the club have not actually archived anything, even with the number of coaches and buying of players they still did not succeed. I think the management should just focus on fixing rather than winning. Rhat way they will be able to move forward. If it is performance I know I don't like arsenal but you can not compare the two clubs arsenal finished second so are they comparable no.