There were multiple things that ranked as priorities for GM Steve Keim when he first got his current job, and one of those was to build depth on the roster. On that, he has most certainly succeeded. Where might that leave the Cardinals at the end of training camp?

"We have more than 53 (players)," Arians said at the completion of minicamp. "We have 65 probably that I am comfortable with. You can't have a bad day. Especially with certain position groups, you just can't have a bad day. You'll fall too far behind."

There are still areas in which the Cards could fortify. A veteran cornerback. A veteran right tackle. If the team ends up signing one or both of those guys, then the Cards have 66 or 67 guys with whom Arians would be comfortable. It sets up the possibility of a camp trade for a late-round draft pick, but it means the Cardinals will definitely release some players who will be considered "surprises."

So much is left to be fought before then. The defensive line was one of those overstuffed spots last training camp, but the dynamic changed considerably when Corey Peters hurt his Achilles and was lost for the season. Still, it was a mild surprise when Matt Shaughnessy was released, and someone else would have had to go had Peters stayed healthy.

What are the positions this year? Defensive line, once again. The back end of the secondary -- while there is inexperience, drafting three defensive backs will make those choices intriguing. Reserve offensive linemen and outside linebackers. Arians isn't wrong. Bad days won't help.