‘When healthy, Gaines is a terrific fit for Sean McDermott’s and Leslie Frazier’s defense. He’s very good in zone coverage, something the Bills play a lot of, understanding angles and help. He’s also an excellent tackler, which McDermott values immensely in his cornerbacks. They were a much better defense and overall team when he was actually on the field in 2017, McDermott and Frazier’s first year in Buffalo as coaches.’