I checked in on Owen Caissie this morning, and honestly the Statcast data is really encouraging. I'm going to do that annoying thing I do where I percentile his numbers against MLB averages from last year:
Avg. Exit Velo - 90.1 MPH (69th)
Avg. Launch Angle - 13.1 (54th)
Max Velo - 112.5 (59th)
Hard Hit Rate - 48.5% (87th)
Chase Rate - 31.7% (30th)
Contact Rate (all pitches) - 69.9% (14th)
Contact Rate (in zone) - 81.9% (24th)
% Pitches in Strikezone - 43.1% (1st)
It's not what I expected to see, but it makes sense. The exit velo numbers are good but hardly elite, and the chase rate is kind of bad? The contact numbers are bad but not atrocious, something I'd hypothesized last season based on his swinging strike rate (basically that his elevated K rate was less a Joey Gallo lack of contact deal and more of a Kyle Schwarber deep counts deal).
So what's the deal? It's that last number. Pitchers at AAA are completely refusing to throw him strikes. Bryce Harper is the only hitter in MLB who got fewer strikes last year. Every pitcher is turning into Blake Snell when he comes to the plate and nibbling like crazy, scared of his power. Caissie's probably getting frustrated and chasing more than he should when he finally gets a vaguely decent pitch, and that's leading to softer contact than he by rights ought to be generating.
We'll see how quickly Caissie locks it down and just accepts his Barry Bonds treatment until pitchers come back into the zone, but this does not look like a guy who is very far off.