The main positional battle on the Dolphins’ defense is at the position that needs to step up this season. It’s no secret that safety is a weakness for Miami, and we heard in the winter that new coordinator Kevin Coyle is looking more for interchangeable safeties as opposed to your traditional strong safety and free safety. Miami did not address the position in the draft, and free-agent pickup Tyrell Johnson appears to be on the roster bubble. Through minicamp, reports indicated that Reshad Jones and Chris Clemons were the first-team safeties. It’s no surprise that Jones, the third-year player who has shown playmaking ability in the past, is in line to start, but it’s a good sign to see Clemons return to that role. Injuries were part of the reason he played in 14 games last season with zero starts. With Yeremiah Bell gone, Clemons no longer has to compete with Jones for one position. In 2010, Clemons started 14 games and had a pair of forced fumbles. One daily team observer said Clemons is the more athletic safety, but he doesn’t have Jones’ instincts. Two players to continue keeping an eye on are second-year DB Jimmy Wilson, who is small but physical, and Tyrone Culver, who we hear has good intelligence to patrol the back end.