I had my doubts, but the more I watch the DVR of the practices, the more I believe his attributes correlate to the 34 Mike. Likely more so than I felt about English last year.
When I look at Graham, I see a fine 43 weakside end. When I watch his technique, his shedding is largely predicated upon his rip move. The rip is rarely used inside, and is largely effective because of similar height. He has a decent bull, but he doesn't set it up as well as he could. Against the run, he does need a plant backstep to square against a downblock. I just don't think it correlates well to the position. Again, I think that he is going to be a fine player, just not a great fit schematically.
Towards Edds, I haven't seen enough of him to make a definitive call. However, I don't think that his frame can support the additional weight while maintaining the first step burst required to play the position. His technique is sound, his desire is linebacker, and he seems like a mean SOB. If his frame can handle the weight, I think he would be a fine fit. It's just when I see Edds, I see a highly physical 43 Mike or Sam. I see a lot of Ben Leber in him. When you look for a 34 Mike, height can be a detriment. It is like comparing a nose to a five tech. Leverage plays a greater role inside, and length and extention is more important outside. Somewhere in the 6' to 6'2 range is ideal for a 34 mike. When you get outside of that, you loose that tightly coiled explosive stockyness, and sacrifice significant pad height advantage. Another player I really like, just doesn't seem to have the frame for the position.