Linebacker Demorrio Williams played four seasons with the Kansas City Chiefs from 2008 to 2011 and after heading to the San Diego Chargers in the offseason, could provide some intimate details on the Chiefs defense for his new team.

This is scenario that plays out routinely in the NFL, although Chiefs coach Romeo Crennel acknowledged on Friday that it's something his team will have to be ready for on Sunday.

"Demorrio knows the defense", said Crennel. "He knows how we've tried to play and basically what techniques we're going to use. He probably knows the adjustments we're going to make, so he can probably tell them all of those things. Then it's just a matter of the matchups as you say and who can do it better."

Crennel would go on to discuss whether this aspect of free agency is something he's been able to exploit in the past. While he acknowledged that a player may be able to provide some information, at the end of the day it's about matchups and execution.

"But still, the information that you get is generic, and you still have to line up and play," said the Chiefs' coach. "Let's say they know what adjustments we make, if they can work that into a matchup issue for us, then that can be good for them. But if that adjustment they know about and then we make, if our guy matches up better, then it really doesn't help them. I think that's the main thing is about the matchups."

The Chiefs face the Chargers on Sunday, with kickoff set for 12:00 p.m. CT.