Talking on ESPN radio's Mike and Mike in the Morning, DeMarcus Ware expressed disappointment that Rob Ryan won't be with the Cowboys in 2013 and offered strong sentiment for his former defensive coordinator.

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"He was one of the best coaches I've ever played for, really teaching me how to play and think like a linebacker," Ware said Thursday. "I had to go in there and know all the drops the inside backers would have and I had to know all the formations, knowing the skill of the game, he really taught me that a lot."

Ware, 30, had 31 sacks in Ryan's two seasons in Dallas.

"Once I heard about his firing, I didn't like it at first, but it's a business deal." Ware said. "It's nothing that I can do about it. You just got to get out there and play.

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"Now we have Monte Kiffin coming in running the 4-3, we can be more aggressive up front. I'll be playing defensive end and you just got to roll with the punches."

Ware will move from outside linebacker to defensive end in 2013 in Kiffin's scheme.

Ware, who had 11.5 sacks last season, might have picked up more if not for elbow and shoulder injuries that limited his play the last month of the season. He underwent shoulder surgery this offseason and told Mike and Mike he should be ready for the start of the 2013 season.

Ware will now play for his fourth different defensive coordinator. That doesn't include Brian Stewart, who was the coordinator under Wade Phillips but was demoted during the 2008 season, and Paul Pasqualoni, who replaced Phillips in the second half of the 2010 season.