The current crop of free agents in Dallas is full of players who may be expendable.
The NFL offseason has some distinct phases. The two biggest are free agency and the draft, and free agency itself has two sub-components, the players teams can sign from outside and their own free agents that have to be evaluated as to whether the team wishes to re-sign or let go. Last year, the Dallas Cowboys had two of their own free agents that were important. They were not able to retain DeMarco Murray due to cost considerations, but were able to keep Dez Bryant, albeit at a very high cost.