Ok take the money out of it if you want. The great players don't need motivation. They work hard to be the best and to continue to get better. Saw it in high school on my teams and it exists regardless of level of play.
Dareus had a rep for not giving it everything, and you aren't going to get much for that. And you may not like to talkabout money but you cannot have your top paid individual half assing it and not have it affect the team. You need to get his butt out, because despite several different coaching staffs he did not show he was dedicated to his craft.
Last week on the NFL pregame Kurt Warner talked about his time with the Rams. He said what turned it around was getting rid of the malcontents. The next year they won the whole thing.
It's great to think there was some gigantic market out there for him, or that keeping him would have not affected the team. But that does not appear to be the case.