From BA earlier this month:
Musgrove was a late bloomer in Southern California, standing out at a showcase in February of his senior year. A 6-foot-5, 230 pounder, he's known for having a heavy fastball.
"He's a big guy and works downhill," Caceres said. "He knows how to pitch. His mound presence is unbelievable. He's more advanced than other guys. He controls the running game. He's very athletic. He can move quickly. He's one guy, we were worried about his velocity a little bit, but he got up to 94 the other night. It's a matter of time for those guys getting used to the program and the velocity will be there."
He signed for $500k, which was $250k below slot. BA had him ranked as the #90 prospect in the draft. Seems like a pretty decent get, maybe somewhere around the Velasquez/Houser tier.