The Cardinals will keep using Isaiah Simmons at multiple positions on defense and now they have a name for his role: "Star 'backer/safety".
www.azcentral.com
''He finished with 105 tackles, third-best on the team, and added four forced fumbles, seven passes defended, 1½ sacks and one interception. He joined Tampa Bay’s Darius Leonard as the only players in the NFL to record 100 or more tackles, four forced fumbles and seven passes defended in 2021, becoming the first Cardinals player to do so since the team relocated here from St. Louis in 1988.''
''Last season, Simmons spent most of his time at inside linebacker (324 total snaps), but also appeared at edge rusher (207 snaps), outside linebacker (193) and slot corner (139). He also played a little safety, saw some action at inside defensive line and logged minutes at both left and right outside cornerback.''
''In a perfect world, Simmons can become sort of cross between Cowboys linebacker Micah Parsons, last season’s NFL Defensive Rookie of the Year, and former Cardinals safety Tyrann Mathieu, who now plays for the Saints. He isn’t the “Money” linebacker Arizona used to call Deone Bucannon. He’s more of a do-everything “Monster” back with shades of both Parsons and the Honey Badger.''
''It’s really nothing new for Simmons. This is the role he carved out for himself in college at Clemson, when he went from a lowly “three-star recruit from Kansas” to an All-American, Butkus Award winner, the ACC Defensive Player of the Year, and a first-round NFL draft pick.
Nobody thought he could do it then, but he proved the doubters wrong and that’s what he plans to do with any critics entering his third season with the Cardinals.''
He's not a safety but closer to a linebacker according to this article. It also looks like the Cards are using him like he was used in college.