Denver and Carolina will meet in Super Bowl 50, but it was really a five-year path for both teams to get to this point. The top two defenses in DVOA this year, each built their strongest unit with high draft picks and a few free-agent deals. In fact, Denver had 45.9 percent of its offensive and defensive snaps from free agents this season, the highest percentage for any Super Bowl team since 2006. The Panthers surprisingly come in second at 37.8 percent, but their moves were not as flashy as John Elway's big-name signings. We recap some of the team's best decisions to build these Super Bowl rosters.