Is Ancelotti right for the job - IF he took the job it would be because he knew he would succeed mate - he won't and i doubt we'd be daft enough to go after him anyway.
Tuchel - depends - he took on a newly promoted small side kin Mainz and got them finishing between 5th and 11th over 5 seasons in the Bundesliga.
Ignore all the panic from a lot of supporters - fuelled for clicks by the media, and the reality is we have some very good players in the squad and some bad holes as well, what we need is a manager good enough and strong enough to make tough decisions and decide the best 11 to get us to January stabilised and then fix those holes in the squad.
We didn't get a 'new manager bounce' with Unsworth - purely because the players he's relied on aren't struggling through lack of effort, but because they are by and large completely washed up (Jagielka, Williams, Baines, Rooney, Lennon and to a lesser extent mirallas too)
What you actually need is someone to come in and motivate and get the best out of the core group of senior pro's who have been under-performing (Sigurdsson, Schneiderlin) and to restore confidence to certain 'new' players who have had theirs shattered - Sandro, Klassen, Holgate, Davies
A real top manager will achieve that - and thats how they became a top manager.