Javorius Allen

The Baltimore Ravens know Alex Collins is their best playmaking running back. The Ravens just don't know whether they can trust him.

In his first start for Baltimore, Collins produced the team's biggest plays, breaking runs of 50 and 23 yards. What's keeping Collins from securing the featured back role is ball security.

Collins fumbled for the second time in three games, which led to coach Johh Harbaugh putting him on notice.

"He won’t get any more opportunities [if he continues] -- the leash isn’t going to be long on that," Harbaugh said. "When you come in here and drop the ball however many times he has dropped, I’m not going to tolerate it. I like him. He’s a good kid, and he makes plays, but he has to hold onto the football."

Related players: Javorius Allen, Terrance West

Collins took over for West as the starter this week, but after he fumbled he didn't get a carry for 14 minutes the story said. The next carry he had was a 50-yard run. It seems like he's on a short leash at this point, but it also seems he's going to continue to get the starting job.