The Facts: Despite HC Kyle Shanahan comparing him to Atlanta running back Tevin Coleman, Williams has a lot to prove just to make the team. He faces an uphill battle for a roster spot after a less-than-impressive offseason and training camp last year. Williams was stashed away on injured reserve with a minor foot injury for his rookie season.

Diehards Line: As NBCSports.com's Matt Maiocco reminded readers, there were questions about Williams' commitment coming out for the draft after he took a leave from the Utah football team during his final year of college. GM John Lynch admits he removed Williams from the team’s draft board. But Shanahan and RBs coach Bobby Turner fell in love with the film, and Lynch placed Williams' name back on the board just before he was selected in the fourth round. “I expect him to turn up his urgency level this year,” Shanahan recently said. “I’ve talked to him about that. He said he has. Looking forward to seeing it.” The problem for Williams is he's now behind free-agent addition Jerick McKinnon and Matt Breida.