Sam Shields should be on your list. He is counting $12M against the CAP in 2016 ($12.1M in 2017 if he is still on the team).
Besides that, 3 of the top 10 are UFA's (Lang, Peppers, Perry)...so there should be cap space. Thing is, there are a lot of others who will be FA's as well (Tretter, Cook, Lacy, Datone, ...)