Seven schools have had a player drafted in the NFL every year since 1967
So, including the 100 or so underclassmen who leave college and declare themselves eligible for the NFL draft, that’s a pool of 3,500 plus players who could be drafted. Now consider the number of players who were drafted by NFL teams in 2014: 254. In other words, only approximately 7% of eligible players get drafted. Those players then have to compete with everyone else on the roster, plus any undrafted college free agents (that is, players who weren’t drafted but are still offered the chance to try to make the roster), plus any other veterans or players from other leagues the team might want to check out, just to make it onto the Week 1 roster.
So this statistic is a pretty amazing stat:
2015 NFL Draft @DraftRT
7 schools have at least 1 player taken in #NFLDraft since 1967: #ArizonaState #Florida #Michigan #MichiganState #Nebraska #Tennessee #USC