The Jets underwent a major overhaul this offseason with new general manager John Idzik tearing up the roster and beginning a rebuilding project. The biggest move was trading cornerback Darrelle Revis, the best player on the team, to the Buccaneers. But Idzik also let a bunch of the Jets own free agents leave — including longtime Jets Brandon Moore, Bryan Thomas, Dustin Keller and Shonn Greene. Idzik also jettisoned quarterback Tim Tebow after one disappointing year and got the team’s salary cap back in shape by releasing several veterans. Mark Sanchez remains, but the team has opened up a competition at quarterback and drafted Geno Smith in the second round to challenge Sanchez for the job. Here is how the Jets fared this offseason: Draft New GM John Idzik had two first-round picks thanks to the Darrelle Revis trade. He used both on defense, taking cornerback Dee Milliner at No. 9 overall and defensive tackle Sheldon Richardson at No. 13. The biggest splash came in the second round when he selected Smith. Milliner and Richardson should be starters from Day 1, with QB Geno Smith and third-round guard Brian Winters possibly breaking into the lineup. Free agency The story was about who left, not who came. Idzik basically let everyone walk. Some of the moves made sense, others were head scratchers. Letting go of tight end Dustin Keller (signed with the Dolphins) and safety Yeremiah Bell (Cardinals) were the most puzzling. The Jets have signed TE Kellen Winslow Jr., but really have not replaced the other spots. As for the additions, running back Mike Goodson, guard Willie Colon, safety Dawan Landry and linebacker Antwan Barnes should have the biggest impact.