Napoli didn't hire Carlo to finish 2nd. They were already 2nd with a 91 points tally and 4 points only away from the top the previous season under Sarri. They hired Carlo to try and take them for the next step forward considering his experience and winning mentality. At the end he got 79 points and finished 11 points away from the top. Next season he was sacked early in the season due to being 7th in the table. They now seem to be gradually recovering again under Gattuso. Overall, this was a failure of an appointment. Yes we can blame the board and all that we can also blame the United board for LVG and Mourinho failures for example, doesn't mean that they themselves didn't underperform.
We aren't blindly blaming the board in this case. You comparing it to our board is showing how little you seem to be aware of the situation. De Laurentiis got in the way of club training methods and meddled with the
day-to-day of the squad, putting players who were considering moves into further low morale. That's not on Ancelotti, he was very much against the forced "ritiro" bootcamps. Besides, as good as Napoli's season under Sarri was in that isolated period, it was very much a red herring.
As for Bayern, they again didn't hire him to win the league they were and are still winning without any competition. They hired him to push for one more CL and he failed. Their showing under him in CL was terrible, first season got eliminated from QF losing home and away to Madrid then next season he was sacked after losing to PSG 3-0 in the group. Also the players hated him and his training sessions, and by the end he lost the dressing room.
I'm not sure what you're trying to point to by "they didn't hire him for xyz" argument. They didn't hire pep to have Bayern's pants pulled down in one of their most humiliating knock out defeats ever, but hey ho, it happened. It's worth also remembering he took on a team that was used to a
very nuanced style of play under Pep which invariably has teething problems. That's not to free him from criticism but to try and put underachieving Bayern tournaments at a precedent to what he achieved with Real (which wasn't that long ago at the time) is a bit silly.
There's a huge reason why Carlo is now managing Everton out of all clubs. There's no top coach in his prime who would have accepted such job. Actually even at his prime he wouldn't have accepted the Napoli job. The guy had managed the best of the best in England, Spain and Italy before, but since his Bayern stent damaged his name so much, he had to step down and agree to manage Napoli, not an elite club, but at least still at top level of football. Then he failed again, and his reputation was damaged more, so he had to again step down and manage a worse team, Everton, a mid table club who don't qualify for any European competitions and have been finishing 7th and below.
Ancelotti took on a challenge. There were no top clubs with vacancies at the time so you can't depend on presumptuous logic so as to suggest he snubbed from top clubs. Ultimately the man has won the CL 3 times, he's won titles in Paris, Germany, Spain, England and Italy and that shit doesn't get forgotten because he got 70% (and not 75%) win rates at Bayern, and had a bad stint in the CL. The goodwill doesn't disappear that easily, especially considering his time with Real prior is seen as a success, his time at Chelsea prior to that remembered fondly too, and so on.
The Napoli argument is just a non starter - you can revisit the events yourself but the players themselves had a mutiny against the owner during the campaign which basically made Ancelotti needing to perform with whatever morale he had. To put the blame on him is just silly.
Carlo would have never accepted such job in his prime. However he just knows that at the moment there's no big club that would want him so let's just take the offer available on the table instead of staying out of job.
It's not theres no big club that would want him, it's that there was no challenge open to him at the time.
He's a manager that took AC Milan to ridiculous heights, that won titles in pretty much every major European League and has worn the CL t-shirt 3 times. Has it not occurred to you that he chose Everton because Farhad Moshiri offered him a new challenge that he wanted to take on, rather than him being over the hill?
This is clearly no different at all than Mourinho's down fall from Chelsea and United to Spurs then Roma. From top clubs up top to a club that will be fine with top 4-6 spot to currently the worst Serie A big team. His reputation was damaged so much from United and Chelsea failures he had to step down, then failed again then had to step down even more, all for the sake of not staying without a job. Carlo just followed the same pattern.
This is just daft, he's nothing like Mourinho, even by way of career trajectory.