Robert Nkemdiche

For the second season in a row, the Cardinals' first-round pick made nary an impact, with Nkemdiche's five appearances following D.J. Humphries' bagel in 2015. Just two years later, Humphries has elevated himself to starting left tackle, a progression that's possible for Nkemdiche. First, though, the mental side of the game is Nkemdiche's biggest hurdle. He's made inroads on that front with a consistent presence at Arizona's facility throughout the offseason. His next steps will arrive during training camp and the preseason, when he'll have the chance to stake a claim to the hole left behind on the defensive line by Calais Campbell's departure to Jacksonville.