I will be plain about my observations:
Average h.s. fastball: 78.
Average h.s. RHP: 80
Average h.s. LHP: 75
Average D1 RHP: 88
Average D1 LHP: 86
Average drafted h.s. RHP: 90
Average drafted h.s. LHP: 88
Average scout that cares: 0
There is so much much to pitching besides velocity. Don't get me wrong, without it, you're not invited.
Velocity. Tenacity. Talent (the art of pitching). These are the three most important predictors of where a player will end up.