Most passes were completed, each block was executed and every blitz was successful during the first two phases of the Broncos’ off-season program. Then again, the collective bargaining agreement would have it no other way — no offense vs. defense work is allowed. That changes Tuesday when the Broncos have the first of 10 organized team activity workouts that lead into a three-day mandatory mini-camp. “You make your real football strides in Phase 3 during OTAs,” Broncos coach Vance Joseph said.