I’ll bite on pinch hitting Vazquez for Wallner.
1. I don’t like to second-guess in general, at least in part because I never have all the pieces of information that go into a decision.
2. But for his career and for the season, Vazquez has an OPS of .730 against lefties, in several hundred at bats.
3. Albeit in a SSS, Wallner is 0-3 on the season vs. lefties and has a career OPS of .293 against lefties. That’s not OBP. That’s not Slugging. That’s OPS. Someone will say, “But how he’s ever going to hit lefties if he doesn’t get a chance?” By getting a chance in lower-leverage situations. Some of us grumble at times, but all in all, the team’s MO with rookies is to bring them along slowly into pressure situations whenever possible.
4. By already having used Castro, Gallo and Farmer, I suspect Rocco had already committed to taking Wallner out for defensive purposes if it reached another inning. The only way to do that is to go to Vazquez anyway, so he pretty much knew that Vazquez was going to be hitting in that spot if the game went through the lineup another time.
5. People were worried about using the second catcher, in case something happened to Jeffers (and it nearly did). In reality, they had an intermediate option if Jeffers has a minor injury. When Jeffers got hit, for example, an option was to flip him and Vazquez. And there was even another option, to actually use Buxton on defense.
6. See also, Chief’s comment above. 🤣
Right decision? Who knows. But to me, it’s much more defensible than he’s given credit for.