3. Ben Tate, Browns
Tate will be in his first feature back role since leaving Houston. He has been overshadowed by Arian Foster his entire career, but the Browns seem ready to give Tate the starting job, and he will provide an upgrade over Trent Richardson, who struggled in his second year in the NFL. Tate rushed for nearly 1,000 yards in 2011 while making three starts, so a full-time starting role almost guarantees he can rush for at least 1,000 yards. Questionable quarterback play will also make the offense reliant on him early on, but if Johnny Manziel lives up to expectations, he could draw attention away from Tate.
2. Montee Ball, Broncos
Ball is set to take on a full-time starting role in Denver after Knowshon Moreno departed for Miami. However, he will have to miss the entire preseason due to an appendectomy. Starting in the Broncos offense will almost guarantee a breakout season though since he will have Peyton Manning to draw attention away from him at all times. Ball became more involved in the offense as his rookie season progressed, so he will look to use that momentum and carry it over into 2014.