Antonio Cromartie was the first. He probably won't be the last.
The New York Jets, attempting to get their salary-cap house in order before the start of free agency, will continue to cut payroll by releasing players and/or re-working contracts. They saved $8 million with Cromartie's release, giving them approximately $21 million in cap room (based on a projected $155 million cap). Putting on my capologist hat, I suspect they'll need at least $35 million to tag Muhammad Wilkerson, re-sign Ryan Fitzpatrick and Damon Harrison and have enough flexibility to add a couple of moderately-priced free agents.