Well, it's not as though a lot of managers hadn't had the same experience with other teams.
The Yankees had Torre among last in their search following Showalter's stint. He was a so so manager until he was handed a talent laden team.
And fwiw, Francona wasn't given as competitive a team in Philly, either. Tito was bookended by Fregosi and Bowa, who didn't fare a whole lot better.
If there was a strength Francona had, it was found in handling huge ego players that were often times at odds with one another... Schilling and Ramirez, Schilling and Martinez, Millar and Garciaparra... The similar kind of skill that Torre had in NY.
And sure, he bears some responsibility for the collapse in 2011, but so too did the Sox FO, who largely ignored his repeated calls for them to help.