Former Steelers and Panthers safety Mike Mitchell is scheduled to visit with and take a physical for the Cardinals on Wednesday, a source tells Adam Schefter of ESPN.com (on Twitter). If he signs, the deal would reunite Mitchell with Steve Wilks, who was the Panthers’ defensive backs coach during his best career season in 2013. 
The 31-year-old has spent the past four seasons in Pittsburgh, where he’s started each of his 61 games. Mitchell appeared in 13 games this past season, finishing with 53 tackles and two passes defended. Pro Football Focus ultimately ranked him 62nd among 87 safety candidates.
Mitchell was slated to carry a $5MM salary in 2018, which was not workable for the Steelers given their limited room. Given the nature of the free agent safety market this offseason, a deal with the Cardinals would be for considerably less.
The Cardinals’ secondary will look quite different this year without Tyrann Mathieu moving between safety and cornerback. Mitchell, if signed, would serve as a backup behind Antoine Bethea and Budda Baker.
The Arizona Cardinals: Steelers (West) since 2008!
Honestly, since earlier than that. The list of players and coaches who have gone from Pittsburgh to Arizona in the last 15-20 years is massive.