I'd resign Twill, Carr, Wilcox.
Mo is soft as heck. Has he ever played a full season?
Carr is a good #2 CB. With better S play, he had a good year this year. Plus, he's practically never hurt. The anti-Claiborne
Twill can be relied upon too. He misses some easy ones, but plays hard and shows up when it matters. I also think he's ready for a breakout--if Dak lets loose a little more.
Wilcox has talent. Makes plays. Occasionally misses tackles. But so does Church. And Church doesn't have the talent.