Anderson rushed for 720 yards and five touchdowns on 152 carries in 2015, adding 183 yards on 25 catches. He fumbled twice. During the playoffs, Anderson carried the ball 54 times for 234 yards and two scores and added 39 yards on nine catches.

Anderson's strong second half to 2014 made him a popular early-round pick in fantasy drafts to start 2015. He failed to live up to expectations, however. From Week 6 through the end of the regular season, Anderson saw fewer touches than fellow back Ronnie Hillman in eight of the 10 games they played with one another (Anderson missed one game with an injury). Come playoff time, however, Denver leaned heavily on Anderson, giving him 63 touches to Hillman's 33. Head coach Gary Kubiak's zone running game relies on backs who are more shifty than fast and are patient and decisive when hitting the hole. Those traits are more in line with Anderson's strengths than Hillman's slash-and-speed abilities. Hillman, an unrestrict free agent, is likely to find better offers elsewhere as Denver attempts to keep its defense intact. Anderson, a restricted free agent, would then become a prime candidate to tender and take on a heavier workload in 2016, potentially living up to the promise he failed to live up to in 2015.