Much was made about the mass turnover in the Bills secondary from 2016 to 2017, as there are all new starters in Buffalo's defensive backfield this season. Especially with Stephon Gilmore joining the rival Patriots on a lucrative deal, many planned to monitor how he'd play compared to newcomers Tre'Davious White and E.J. Gaines.
(Grades courtesy of Pro Football Focus.)
White is currently PFF's No. 10 cornerback out of 110 qualifying players at the same position.
His overall grade is 84.1, and his coverage grade is 83.9, the ninth-highest among those same cornerbacks. White's run-stopping grade of 74.7 ranks 30th.
E.J. Gaines owns the No. 21 overall grade of 82.2, and the 13th-best coverage grade of 82.2. Compared to how well he's played as a cover man, Gaines has struggled as a run-defender. His grade of 45.6 ranks 64th out of 90 qualifying corners.
Meanwhile, Gilmore is PFF's No. 38 corner through three games with an overall grade of 77.6. His coverage grade of 77.9 is the 33rd-highest, and his run-defense grade of 40.4 is ranks him as the No. 79 cornerback in that area out of 90 qualifiers.
They don't have the exact same assignments every play in every game, but clearly, as it currently stands, both White and Gaines have outplayed Gilmore in 2017.