I agree and this far in the rearview mirror it makes sense, but at that point in time I think Casey's camp could have easily demanded another 7x7 deal; he was showing himself at that time to be slightly better than Cozens so why wouldn't he? I got the impression that Adams didn't want to sew discontent by offering him substantially less although I seem to remember Casey saying he would have preferred re-signing so maybe he would have been amenable to a hometown discount. Heck, COL signed him for 5.75 x 3.
I loved the role he played on the Sabres roster: a better than average 3C but could move up to any top 6 position should the need arise. The Sabres center spine took a hit when they shipped him out and still hasn't recovered. And I, too, wonder why they wanted Byram so much, unless that was the best Kevyn could garner for him. Now that Byram's here, fine, I've been pretty happy with his play. But I was extremely puzzled at the time why that trade was made.