Shaughnessy returning to Arizona?

Alongside their attempts to bring back free agent veteran linebacker Karlos Dansby, the Arizona Cardinals are also working on ironing out other areas of their defensive unit. Free agent outside linebacker Matt Shaughnessy is one of these pieces--the sixth-year man played in all 16 games for the Cards last season, started 12, and operated as an integral part of what was an elite run defense in 2013. What is Shaughnessy's status in Arizona?