I would put Ottavino on the IL for some rest, it looks like he is trending in the wrong direction and this is a guy who doesn't pitch as well late in the season (in recent years). Of course, I'm not sure who the Red Sox would replace Ottavino with, since the Red Sox didn't trade for any quality relief arms at the deadline.
Edit--here it is: Ottavino's last 4 appearances, 3 IP, 3.00 WHIP, and a 21.00 ERA. And before anyone brings up the "brilliant" observation of, "small sample size," it is worth noting that small sample sizes are pretty much what you rely on when it comes to relief pitchers.
Ottavino is getting older, perhaps his annual decline has started earlier than usual?
Let's say Ottavino continues to fall apart, who do you replace him with? The Red Sox need Houck in the rotation. Whitlock would be the best choice, but I was thinking the Red Sox need to save Whitlock for the games started by Houck. Kind of like: Houck and Whitlock together would equal one dominant starter, but that strategy doesn't work if the Red Sox need Whitlock to become the main 8th inning set up guy.