James Hanna

Being the primary backup to the ageless Jason Witten is a pretty thankless job, but Hanna handled his limited role in Dallas well over four seasons before a knee injury that required two surgeries cost him all of 2016. When healthy, the 28-year-old has good hands and speed and has turned himself into an adept blocker, allowing him to see snaps in all situations when Witten needs a rare breather. Assuming he proves he's 100 percent in camp, Hanna should resume his No. 2 spot on the depth chart, although he may need to peek over his shoulder at athletic phenom Rico Gathers.