If it doesn't already exist, someone, somewhere, should put together a video of "All-Everything" college athletes who were supposed to tear it up in the pros, but never made the cut. Of course, Ryan Leaf would be top of the list. Jamarcus Russell. Andre Ware. David Klingler. Ki-Jana Carter. Lawrence Phillips. Brian Bosworth. Akili Smith. Vernon Gholston. Peter Warrick. Charles Rogers. Archie Griffin. Art Schlichter. David Pollack (no offense intended - but that WAS a short career). Terrence Edwards. Fred Gibson. Odell Thurman. David Greene. Honestly, let's be real - Herschel Walker. The list is LONG and DISTINGUISHED.
I would put together a video of their greatest plays when they were in college, really hype them up. Then show how their NFL careers went. Show where they are now. Then give them the stats about how many players in D1 have actually gone on to the NFL.
I'm the first to realize that young men think "that'll never happen to me, 'cause I'm different", but you might at least cause SOME of these guys to come up with a Plan B - maybe see that scholarship as a completely different kind of thing. Not a ticket to the NFL, but rather a ticket to a CAREER, in case the NFL thing doesn't pan out. I'm sure it's been done - there's probably just no getting through to some of these guys.