It's not number one because I'm not as panicked with the O-line situation as many are.
The coaches felt good about Ducasse and Mills on the right side, they brought in Bodine and also have Groy as the potential starting C, and Dawkins is solid at LT.
We know why Ducasse got the starting RG slot, it's because it was believed by the coaching staff that he best fit Rick Dennison's zone blocking scheme. John Miller is not trash by a longshot and he is still on the roster. Brian Daboll could find Miller more valuable to what he wants to do as offensive coordinator. Miller could always regain the RG position, while a more athletic Ducasse gets flipped to the LG spot. Maybe Miller is moved to LG and Ducasse continues to man the RG spot.
I'm not thrilled with either Ducasse or Mills and the Bills could upgrade, but they both were part of that rushing attack surge that caught on late in the season.
I think the Bills should to add to the line in this draft, but I don't think at all that it's a must that they go OL on Day 2.