Morel doesn't have much plate discipline and has major swing-and-miss issues.
Some guys, like PCA, have a weakness. In his case, it's high heaters. And if you can get PCA to make whatever adjustments are necessary such that he can reliably get to high heaters without sacrificing his coverage of the rest of the zone, then he could cut the strikeout rate pretty significantly.
But Morel's contact issues aren't quite as isolated like that. It's all across the zone, and on all types of pitches. He's a bit better against fastballs, so maybe you can make some improvement by getting him to wait back a bit on the breaking stuff, but that'll exacerbate the fastball issue such that it's probably a breakeven thing overall. So nobody is expecting anything more than modest improvements from Morel.