Jon Gruden praised Greg Olson's early work as offensive coordinator of the Oakland Raiders.

"What Greg has done is created a lot of chaos," Gruden said.

Gruden hired Olson as his quarterbacks coach with the Tampa Bay Buccaneers in 2008.

Olson calls Gruden one of his biggest influences as an offensive coach, citing his "presentation and preparation," as well as Gruden's belief of being a team that applies pressure rather than feeling pressure.

"You're going to have to deal with (Darren) McFadden; on the other side you're going to have to deal with Pryor and the option, the zone read and all the nuances that go along with that," Gruden said.

"I've seen Wildcat formations. I've see shifts to no-back sets. I've seen them bring in (Matt) McCants, a big offensive tackle, to play tight end. You're seeing a coordinator that's doing everything he can to adapt to a new quarterback."