JERRY GRAY, defensive coordinator, Buffalo. With the Bills in retreat lately, you might wonder what he’s doing here. I don’t. I saw what happened in Buffalo last year when the Bills had a league-high 39 takeaways, fueling a second-half run that fell just short of the playoffs. The Bills returned with another 30 takeaways this year but, in general, the defense was a disappointment — plummeting from second to 29th as the Bills fell from 9-7 to 5-11.