Kelly is getting support from someone on his own staff though. Eagles running backs coach Duce Staley, who is close to McCoy, stood up for Kelly, per ESPN.com.
"Chip is not a racist at all," Staley said. "Chip and I work well together. I mean, everybody has their own opinion. I'm not here to talk about [Tra Thomas] or to talk about what McCoy is talking about. I know from my relationship with Chip, that's definitely far-fetched. We're all here to do a job, and that's football, so don't take a chapter and make it a book."
After being traded to the Bills, McCoy said in an interview with ESPN The Magazine that Kelly "got rid of all the good black players."
McCoy spoke publicly on Wednesday for the first time since accusing Kelly of prioritizing race when it came to making player personnel decisions. He didn't reverse course and stood by his original comments.
"I don't have to explain myself to nobody," McCoy said when asked to elaborate on his assertions. "Nobody. I don't. I said what I said, said what I felt at the time and I'm done with that."
McCoy said of Kelly before:
"He wants the full control. You see how fast he got rid of all the good players. Especially all the good black players. He got rid of them the fastest. That's the truth. There's a reason. ... It's hard to explain with him. But there's a reason he got rid of all the players - the good ones - like that."
Kelly responded to McCoy's comments by saying he was "wrong" and that race has never been a factor in whether to keep or release a player.
McCoy rushed for 1,319 yards and five touchdowns for the Eagles last season.
McCoy sat out team drills, partially because Bills coach Rex Ryan did not want to take any chances during this early stage of the season. "We don't need him out there," Ryan said.
Bills' running backs coach Anthony Lynn said, "I’d love to see him get that many rushes. If he’s getting that many touches, that means that we’re winning ball games, we’re running the ball. We’re controlling time of possession. We’re setting up the play action. We’re doing some good things if he touches it that many times," per the Buffalo News.
"I think he’s got a lot of good years left in him at 27, going into his seventh season," he said. "I talk to the guys all the time about Curtis Martin. This guy led the league in rushing his ninth year."