For those who think mendenhall fumbles a lot here's a stat.
"So far through five seasons Mendenhall has fumbled the ball nine times and lost seven of those fumbles. That means he fumbles about every 105 times he touches the ball. For a better perspective that number is better than Adrian Peterson, Arian Foster, Marshawn Lynch, and Jamaal Charles.”
Also another tid bit from this that article
"During Dwyer’s early college career he was a quick power back, but he is about 15-20 pounds heavier now. If the Steelers want a runner that can get to the edge they may have their guy in Dwyer. It will just require Dwyer to drop some weight and get back to sprinting. Dwyer was a All-State sprinter in high school he ran a 10.81 in the 100 meter dash, the second best time in the state of Georgia."