Bernard Pierce

Running back Alex Collins proved to be the biggest surprise of the Baltimore Ravens this season, going from the practice squad in Week 1 to the NFL's 11th-leading rusher.

But Ravens coach John Harbaugh was noncommittal when asked whether Collins earned the right to be the starter for next season or if Baltimore will look to upgrade.

"I'm looking to upgrade everything. You know that's how I'm going to answer the question," Harbaugh said. "Alex Collins has proven the fact that he can be a very good back in this league."

Collins isn't seen as a workhorse back by Baltimore. The Ravens never gave him the ball more than 20 times in a game (compared to Todd Gurley and Leonard Fournette, who combined to do so 12 times) because they didn't want to wear down a smaller frame back like Collins. There are also other issues with ball security (four fumbles) and catching the ball (three drops).

The Ravens could just be keeping their options open at running back, especially in the draft. Baltimore hasn't selected a running back in the first three rounds since Bernard Pierce in 2012, and the team could be kicking itself after passing on Alvin Kamara and Kareem Hunt last year.

Collins averaged 4.59 YPC, which was No. 4 in the league among running backs with at least 200 carries. If the Ravens don't make a big move at running back, Collins will likely hold draft value in the fourth or fifth round.