I do agree that Hjerpe still has a lot of ifs but I don’t think the idea of him pitching out of the ML bullpen by September is quite as far fetched as you believe. I’m almost certain he could have done it and been effective before he got hurt. However, the goal was to make him a starter. I’m only saying it could happen and I wouldn’t be that surprised if it did.
As for Matthews, if I were a gambler, I’d bet heavily on him being on the big league roster this season. He’s going to get his pitches under better control. Right now he’s just tinkering around to figure out what works and what doesn’t.
I forgot to add Cijntje to my others who are interesting group. I actually have never watched him pitch yet. Not sure why I keep missing him but I do. I’ve only seen highlights. He’s certainly interesting.