NFL offseason: 5 storylines to follow in Arizona Cardinals OTAs

The Arizona Cardinals open their first round of organized team activities (OTAs) on Tuesday. Over the next three weeks, they will have 10 practices, with another three during mini-camp the following week. While it is early, there are some storylines to follow.

How will D.J. Humphries look?

Entering Year 2, the 2015 first round pick now is in position to be a starter. Bobby Massie and Bradley Sowell left in free agency. Bruce Arians and Steve Keim have talked a good game about Humphries being ready. But is he? How will he look in practice? Will he show enough to keep the Cardinals from bringing in a veteran with experience? Arians says every year you let the young guys work and then you bring in a veteran if you can't trust the young guys to handle it.

Which cornerbacks will step up with all the starters out with injury?

The three guys expected to get all the playing time at cornerback during the regular season are all out. Patrick Peterson is recovering from offseason ankle surgery. Justin Bethel had surgery on his foot. Tyrann Mathieu is rehabbing after ACL surgery. This means there are plenty of opportunities for the rookies and the offseason additions to make an impact. Can Brandon Williams flash on the field entering only Year 2 of playing corner? Will Harlan Miller step up? What about Asa Jackson or Shaun Prater, who have years in the NFL?

How quickly will Evan Boehm move up the depth chart?

A,Q. Shipley is the starting center for now, but how long will it be before we see the rookie out of Missouri begin rotating with him for competition?

What will the safety rotation look like?

With Mathieu out and with Rashad Johnson gone, we get to see what the initial safety rotations look like. Tyvon Branch is the expected starter along with Mathieu, but what about Tony Jefferson and D.J. Swearinger? Will Marqui Christian show anything early?

Jefferson was unhappy in the offseason because of his contract situation. He believes he is more than just a depth guy. As he stands now, he will be the team's third safety and will play a lot because Mathieu plays mostly in the slot. But he believes he is a guy who can start. Will he be able to show it?

Long snappers?

It is going to be hard to get any sort of gauge on this competition, but since there are two guys vying for a spot fans and coaches never ever had to worry about, we need to keep an eye on Daniel Dillon and Kameron Canaday.