ENGLEWOOD, Colo. — Slogging through the rubble of that Super Bowl landslide, John Elway blew up his defense.He brought in DeMarcus Ware, T.J. Ward, Aqib Talib and Marvin Austin, trying to toughen up his team — yes, like the one that had just whooped them in the Meadowlands.He bid farewell to Champ Bailey, so long to Dominique Rodgers-Cromartie, and goodbye to Paris Lenon and Mike Adams.Then, he welcomed the sights of starters Von Miller, Chris Harris Jr., Derek Wolfe and Rahim Moore returning from injuries that sidelined them for the Super Bowl.The Denver defense that will take the field on Sunday hardly resembles the patchwork unit the Broncos trotted out eight months ago. Only three starters remain: linebacker Nate Irving and tackles Sylvester Williams and Terrance Knighton. And Irving will be playing the weakside instead of the strongside.With such wholesale changes, these Broncos (2-0) are looking toward the showdown with the Seahawks (1-1) as more of a barometer than a reprisal.“Even if we win this game, it still won’t fix what happened last year,” Harris said.