The GCL1 Yankees have been great this year, and they have some of the Yanks best lower level pitchers including 19 year old Austin DeCarr, 20 year old Ty Hensley and 21 year old Simon De la Rosa. Today, they all pitched one after another. Ty started and allowed 0 runs, in two innings, though he walked 4 and only K'd 2. Might have been getting squeezed or working on something. DeCarr also pitched two shutout innings with 2 K's and no walks. De la Rosas then pitched 4 innings of 1 run, 1BB 7K ball. The Yanks are currently winning this game 11-1 and I'm not sure who will pitch the 9th.
That said, I feel sorry for whoever they were playing. They got no let up. Both Ty and Austin are exactly what you're looking for in a righty power pitcher. Ty is coming back from injuries and Austin was just drafted but they both have top of the rotation projection. De la Rosa is a little older, in fact, he's older than Luis Severino right now.
Actually let's talk about pitchers ages for a minute. Ultimately all that matters is that a guy can get major league hitters out. Dwight Gooden could do it at 18, and Mike Scott didn't get really good at it till his late 30's. So in development terms, it doesn't matter how old pitcher is, even if he's crushing younger competition, because he'll either run into a level he can't stop or he won't.
Thus with a pitcher like De la Rosa, I'm not going to worry about age until and if he finds a ceiling.
Back to De la Rosa, he's got electric arm, and will probably hit Charleston next year and could be a fast mover.
In all it was a really interesting day for GCL 1 as they threw a possible 3/5's of a future rotation at the hapless GCL Phillies. Just checked, 14-1 was your final. Sheesh!
UPDATE: Jose Mesa pitched the scoreless 9th with 1 K.