Yes, I am sure about that. You have to see what Flick did to Bayern's system to understand that. What Bayern missed with Kovac was a working spine of players that played centrally on the pitch and that really take responsibility. With Neuer - Alaba - the midfield with Kimmich, Thiago and Müller - and Lewy - they really have that now. All players playing since Peptime - knowing each other very well. Hernandez has very good defender abilities - but not the build up abilities that Alaba has (and some things he cannot have like the standing in the team, the knowledge of the system and the language and command) - and two left feets (?) in inner defense does not work as left feets usually have their right foot only for standing... Süle will complement very well when he comes back because of his header qualities etc. - but despite Kovac wish to make him "commander in defense" he until now is not.
No - there really is no doubt. He actually already played this role in 15/16 with Pep.
Signing another CB is not a question at Bayern right now. Upemecano is on the Bayern list - but not for this but for next season. Upemecano is (especially when you listened to his agent on Sunday in German TV) extending his contract for another year - Bayern and other clubs that he is interested into transferring to aren't paying that 60 mio. EUR for a defender this season and giving him the contract he wants. Bayern is looking for a right back as supplement. They are satisfied with Pavard's performances - even if some fans underrate the role that he plays as he plays more defensive than the left fullback - but he gives a very good shield to Gnabry and Müller and the defensive midfielder.
When you look at him on the pitch and in training (he is a very communicative type and in the center of everything) he looks like he is more than satisfied in the surrounding. And the role as boss of the defense is something he seems to like as an upgrade to just a team role. Yes, he always wanted to play midfield... - but that is actually nothing other top teams would offer him either. City right now does not play Champions League in the next two season - something that is important to players that usually play it. I am not 100% sure - but I think right now it is a story about money and "appreciation" - not really the desire for new things. With Corona influencing the transfer market this season I somehow doubt that offers in the range he would like them really will fly in in bundles.