I had stopped paying attention by the time Scalzo was in the game, but his average velo was up 3 full MPH today it looks like.
Some of that might be classification, in that he maybe had some AAA cutters get classified FBs and drag down his average. But the top end velo doesn't lie. The fastest pitch he threw in AAA last year was 95.6, today 10 of his 11 fastballs today were harder than that. Including topping 97 twice!
Looks like he might be adding a sweeper too, but I'm gonna leave parsing that to the experts.