A decent comp for Wells could be Tommy Milone.. https://baseballsavant.mlb.com/savant-player/tommy-milone-543548?stats=statcast-r-pitching-mlb
Wells doesn't have the changeup that Milone has, but I think his breaking ball is better.
Really nice guy to have in the system. If his velocity ticks up, you're looking at a Means-like upside.
As I mentioned in the Wells thread, I'd move Wells down if it were my list. Rom is a guy who fits well about here though, IMO. Could be a fringy prospect that's highly dependent on pitchability, or a guy with a little velocity becomes a higher-rated guy.
Can't argue with this guy's production. That said, I'd ding him more on velocity than his production would suggest. I just feel like he'll have to be great just to be good, and I really question whether he'll stick. He wouldn't be in my personal top 25 most likely, but I do understand why he's here.