Gerhart signed for the Jaguars during free agency following four years at the Minnesota Vikings, where he saw his opportunities limited behind All-Pro back Adrian Peterson.
Bradley told reporters: "He has the ability to play all three downs. How many carries he gets — we would like to run the ball over 40 percent of the time. There might be 28-30 carries in a game and there aren't more running backs that carry more than 20 times a game.
"If he's a guy that is carrying it 15-16 times and with third-down reps, 18 times. That's feasible. A strong possibility."
The 26-year-old had 32 carries for 283 yards and two touchdowns in the 2013 season.