Yes there is. When the scouts start REALLY picking him apart, they'll see that he ran behind the best offensive line in the country with other backs who averaged well over the national average. He's almost exclusively a north-south runner... no real cutback ability that you associate with elite running backs, and he runs way too upright.
He's a slightly faster version of Eddie George, and Eddie George was not worth a 1st round pick when you look at his per carry average. McFadden may be, but he's certainly not the top 10 lock everyone seems to think he is.
Rashard Mendenhall put up better numbers this season on a WAY lesser ball club behind a line that couldn't put a single starter on Arkansas' roster.