Brackett makes sense, as much as I don't want to see him go. He has been great for the team, but that is a lot of money for someone who has been replaced.
Freeney is a huge cap hit. With Mathis, I believe they are somewhere around $30m of our cap this year (please correct that if wrong)
I want Clark to stay. I think he would be excellent to help Luck through his first season.