Quick note: I thought about including Tony Romo on this list -- in this spot, in fact -- but recent back troubles have reduced his improvisational skills. Now, critics might take umbrage with Kaepernick's inclusion following his subpar 2014 performance, but he remains one of the most dangerous dual-threat playmakers at the position. Kap possesses a rare combination of arm talent and athleticism that makes him a headache to defend when he is on the move. He attempted to prove that he could thrive as a traditional pocket passer last season, but Kaepernick is still at his best when he plays "sandlot" football. He has a knack for finding open receivers downfield while on the move, and his uncanny agility and body control allow him to deliver pinpoint passes from unorthodox positions. While the 49ers certainly understand the need to keep their franchise quarterback protected, the spectacular plays that he delivers when operating "off the leash" should encourage the team to let him freestyle a bit more in 2015.