Which top 10 running back in the 2008 draft will be a bust in the NFL?

i dont see too many of those backs being prototypical backs in the nfl. i dont see tehem being mainstays with one team either. u have to look at longevity in college and high school, carries and productivity. how many of these guys are 4th quarter backs? none of them i them i think. u can add slaton and mike hart to the list too.