Can rookies make an impact?
No. 1 overall pick Andrew Luck(left) is one of the most highly touted quarterbacks to come out of the draft in some time. The Colts chose to go forward with him over Peyton Manning, who signed a large contract with the Broncos. Running back Doug Martin (right), a late first-round pick,, will start for Tampa Bay in Week 1, and third-round draft pick Russell Wilson will start the season at quarterback for the Seahawks. Robert Griffin III and Trent Richardson will also be counted on heavily. Rookies are taking on larger roles in the NFL. Will the trend continue?