Because of Graham's short height & only average arm length, I thought during the 2010 draft that he would be better-suited as an OLB in a 3-4, so I was surprised when Philly (a 4-3 defense at the time) traded up for him. But after reading the link above, Chip & the DC appear to doubt his effectiveness in space. And after further research, I've come to the same conclusion.
So the question for me now is: would he fit here as a 4-3 DE, and at what cost? My quick answer is: I don't know, but I would trade Jake Bequette to Philly for the privilege of finding out.