The headline speaks for itself.
A couple of notes:
1. It's probably safe to say the # of underclassmen (whether drafted or subsequently signed as UFA) who are out of the league altogether after 2 or 3 years is much higher than 40%.
2. Football factories like Alabama consistently see a significant number of underclassmen turn pro every year. Part of this is due to talent but it is also due to the unconscioanable and hypocritical 1 year schollarship guarantee policy.
3. Our recruiting staff should be using these NFL Draft tidbits to our advantage. The case can and should be made that a kid is much better off playing at Michigan given that: (i) you have a 4 year scholarship guarantee; and (ii) your chances of seeing the field and developing as a prospect are probably higher than at Alabama given that Bama currently recruits at a much higher level and the likelihood of attrition is much higher.
Oh and did I mention Michigan has better academics? Oh, hell that doesn't matter anymore I guess...