You don't say a word about hitting. This is a pretty good time to be a vertically challenged position player. If you look at recent high draft choices like Nick Madrigal, and top MLB hitters like Jose Altuve there seems to be less of a premium on size than just a few years back. But the kid needs to hit. And he's got to get that 60 time under 7. He's young enough that he should be able to with a little speed training.
One of my son's HS teammates was a 5' 6" CF/LHP. He got zero attention out of HS, but after playing well in Juco, he was signed by a D1 and then drafted. But he rakes and throws 90. Gotta have more than one skill.