Regarding Jax, Put me down on the "glad Rocco didn't risk multiple innings from one of his few good options" side of the ledger.
Jax pitched Friday. So now he's pitching back to back, one risk factor. There's also a widely held opinion that multiple inning use puts a lot of extra strain on arms...that sitting for a half inning, then resuming pitching, is different than 1 inning use. Another risk factor.
IMO Rocco handled that just fine. Just another reminder there's no such thing as a low leverage reliever. Everyone in the pen is going to pitch at least sometimes with the game close. You can't just use a couple guys every time a game is close.
My quibbles with Rocco would be he left Lopez in too long, and I wouldn't have let Ortiz pitch to Rooker as the go-ahead run in the 8th. I'd have used Duran for 1 out there, and let the other Lopez have the 9th. And that's not second guessing, I said it real time in game thread.
But it worked out, even though Rooker missed a 3 run shot by a couple feet. We're lucky he hit that to dead center.