Updating Dolphins' top remaining needs

NFL free agency started one week ago, and the Miami Dolphins made a point to make the biggest splash early. The Dolphins signed Pro Bowl defensive tackle Ndamukong Suh, filling one of their biggest needs, as well as free-agent tight end Jordan Cameron, cornerback Brice McCain and trading for receiver Kenny Stills.

It's been a wild first week for Miami. However, there is still work to be done to improve the team. Here is an updated list of needs for the Dolphins entering the second week of free agency:

Need No. 1: Linebacker

Analysis: I agreed with the Dolphins' decisions to cut former starter Philip Wheeler and trade Dannell Ellerbe, who also started before missing 15 games last season due to injury. Both were big-money signings who underachieved. However, the Dolphins don't have a viable replacement in-house. Jelani Jenkins and Koa Misi are two capable starters, but the third starter remains a mystery. Some think athletic defensive end Dion Jordan can fill the void, but that's a risky proposition at this stage in a must-win season. The Dolphins must add a safer bet at middle or outside linebacker via free agency or the draft.

Need No. 2: Safety

Analysis: The Dolphins are still searching for a free safety to play next to strong safety Reshad Jones, who played well last season. Jones and former Dolphins starter Louis Delmas had good chemistry last season. But Delmas, who is a free agent, tore his ACL last December and won't be 100 percent for a while. There is not much left on the safety market in free agency. Targets I liked, such as Antrel Rolle and Ron Parker signed with the Chicago Bears and Kansas City Chiefs, respectively. One free-agent safety still on the market who I think fits Miami's scheme is Stevie Brown. Former Alabama safety Landon Collins also is a possibility in the draft.

Need No. 3: Guard

Analysis: The Dolphins have two positions to fill at guard. Last year's starter Daryn Colledge was let go in free agency and fellow starter Mike Pouncey is expected to move back to his natural position of center. Getting two new guards can be challenge. Miami's best bet is to fill at least one position in house. Candidates such as Billy Turner and Dallas Thomas will get a chance to step up. A second guard could be added in the draft or free agency. Otherwise, Miami's offensive line is strong at center (Pouncey) and offensive tackle (Branden Albert, Ja'Wuan James).