A fourth-round pick from a small college in 2016, Miller made great strides last year in the Carolina League. He pitched to a 3.54 ERA across 23 starts for Myrtle Beach, holding opponents to a .219 average-against and posting enthusing strikeout/walk peripherals. He has kept that up upon moving to the upper-minors, pitching to a 2.51 ERA across 13 starts in Double-A this year.
Miller’s durability and control are his best attributes, giving the upside of a back-rotation starter or versatile long reliever. The fastball sits in the low-90s, scraping 94 mph at best, with advanced control and different variants (four-seamer, occasional short cutter), though he has never managed contact well, keeping less than 40-percent of balls in play on the ground. A mid-80s slider is at least a playable offering, if not a bit more, depending on how much two-plane depth he can get on it. Miller’s 82-to-86 mph changeup is the third pitch, projecting to be workable enough to use as a wrinkle. We like Miller more for his floor than ceiling, but he’s a good bet to contribute at the big league level in some capacity.