Dallas defensive end Greg Ellis doesn't think safety Roy Williams fits in with the team anymore, and believes that the Cowboys could trade the former Oklahoma star, according to The San Antonio Express-News. "He said, ?Greg, this defense does not fit me. I don?t fit in well with this defense at all,? " the Dallas Morning News? Web site quoted Ellis as saying. "So when he told me that, I was like, ?Well, man, it?s still new. Get used to it, and it?ll probably be fine for you.? And, obviously, I think it came to be true. Just like he said, he doesn?t fit what?s going on here in Dallas right now.? " Ellis expressed his optimism that Williams could adapt this season, while also hinting that Dallas could trade the safety. "Now maybe this year, if they decide to keep him for this season, Wade and them will kind of adjust some things to fit him better," Ellis said. Williams has made five-straight Pro Bowls.