Analyzing McShay mock 4.0: Cardinals

As good as the Arizona Cardinals defense was in 2013, there are ways to make it better.

Arizona picks 20th in the first round of May's NFL draft, leaving them with plenty of options to fill positions of need -- a tackle or safety, for example -- or address areas where it wants to improve.

In ESPN Draft Insider Todd McShay's fourth mock draft,Insider he has the Cardinals addressing one of their biggest needs in the first round and a potential future need in the second.