I would go the other way and try baseball first, at least for 2019. He might not be good enough, and, if so, it would show pretty quickly. Correct me if I am wrong, but I believe he played 2 years of college ball. First year, he didn't hit. Second year, last year, he hit in the .290's with 12 or so homers and a lot of speed. I am often amazed how tough pro baseball is. Every year there are players drafted who hit really well in college and really struggle as soon as they go pro, even in low minors. If he plays baseball this year and doesn't do well, missing one year of football won't hurt him. Losing a year or three of baseball would really set him back if he plays football in 2019-20.