I'm nowhere near as sure as I used to be that Theo SHOULD survive this. This revelation about the clubhouse is a gamechanger.
Tito loses the clubhouse. Let me repeat that. TITO, the guy known around the league as one of the best managers at keeping a clubhouse together, and with a longstanding relationship with several of the team's leading players, he loses the clubhouse. If it was a lesser clubouse manager maybe you blame him, but Tito makes his bread and butter keeping the clubhouse loose, and if he can't do his job, it's because he hasn't been given the material to work with. That's on Theo, and it's huge.
As for who I'd replace Theo with? Some might find it an odd choice, but I look ti Mike Arbuckle, the Royals' player development guy. He's done a very good job guiding the current wave of extremely highly rated Royals prospects into the big league roster, and you saw some of them come into their own nicely this year -- Moustakas, Hosmer, Salvador Perez, etc. It's the sort of thing we need to be able to do a little better in order to have a complete team. So I'd definitely look there first and see if he was interested.