It appears you are only looking at Tito's successes, which is fine.
I know winning rings is the crown achievement for anyone, and if Cora never wins one, I'll probbaly adjust my opinion, but as of right now, he's the best Sox manager I have ever seen. He's loyal to the players but not to a fault.
BTW, I never said or implied success is linear. I expected many of our declining prime players to improve, no matter who was managing.