The news Deone Bucannon won't play Sunday -- not a huge shock, even without the setback of an ankle sprain -- puts on hold what the Cardinals will do with rookie Haason Reddick when Bucannon, Reddick and Karlos Dansby are all available. Reddick will be needed to play in Bucannon's role, at least in certain packages.

But it also goes to that concern lingering as soon as the Cards cut to 53 and, at least outwardly, the team only kept three outside linebackers. What about depth? What about a fourth behind Markus Golden, Chandler Jones and Kareem Martin? Coach Bruce Arians mentioned that veteran Philip Wheeler, signed as an inside linebacker, worked in practice recently on the outside and can play both spots. Defensive lineman Josh Mauro has occasionally taken reps at OLB and could serve there in a pinch, especially on running downs. But then there is Reddick.

Reddick, who played defensive end in college, slowly has gotten some reps as an outside 'backer to build on his work on the inside. And once Bucannon is back, Reddick makes the most sense as a dual-threat guy, someone who can play on the inside in certain packages, who can rush the passer in certain packages, and who can also serve as that fourth guy behind Golden, Jones and Martin.

Again, versatility has been one of the hallmarks of the players GM Steve Keim has sought, especially on the defense. The linemen can play anywhere. The linebackers, mostly, can switch around. The defensive backs are interchangeable. That is how the Cards will solve that fourth OLB issue.