Arizona beat writers are speculating that Arnold could make a significant impact this season after being plucked off the waiver wire late last year. In the final three weeks with the Cardinals, Arnold posted 1-6-1 (1), 1-20 (3) and 4-76-1 (6) playing 18%/26%/44% of the snaps. Charles Clay didn’t play in Week 17 and has since moved on. Maxx Williams is a good blocker and is still with the team, but Arnold almost matched him in routes run (28 to 32) over the final two weeks of the season, so clearly the Cardinals liked what they saw late in the year. He’s on the slim side at 220 lbs, but he’s a great athlete for the position and could capitalize down the seam while DeAndre Hopkins, Christian Kirk and Larry Fitzgerald draw coverage elsewhere.