From MLB.com:
No player in this Draft creates more split opinions on whether he has a brighter future as a hitter or pitcher than Schwellenbach. Though the Indians drafted him in the 34th round as a pitcher out of a Michigan high school in 2018, he didn't take the mound in college until this spring because of an elbow injury that he sustained as a prepster and required a ligament repair procedure after his freshman year at Nebraska. He has displayed three quality pitches as a closer in 2021 and some clubs envision him as a mid-rotation starter, while others think he could sneak into the first round as a shortstop.
The Cornhuskers have handled Schwellenbach's arm carefully and had used him for just eight innings through mid-April, but that and fall practice has been enough to show the makings of three plus pitches. He strolls in from shortstop at the end of games and unleashes 94-97 mph fastballs that have peaked at 99, low-80s sliders and mid-80s changeups with power sink. He commands all three offerings well with a simple delivery and definitely has the look of a starter, though it's unclear if he could handle that workload. Scouts have noted some parallels to Jacob deGrom, who barely pitched before his junior year at Stetson.
While everyone loves Schwellenbach's pure stuff on the mound, there's more divergence about his value as a position player, with some teams seeing him fitting in the top two rounds and others valuing him five rounds lower. His biggest backers see him as an improving right-handed hitter who generates huge exit velocities and flashes plus running times, while others see his bat, power and speed as more ordinary. He obviously has a strong arm, and while he has a good internal clock at shortstop, the consensus is that his range is more suited for second or third base.
They have him ranked as their 42nd best draft prospect. Interesting, I had no idea he was so highly regarded.