Bowles, the Cardinals' defensive coordinator from 2013-14, interviewed with Bears general manager Ryan Pace for the head coaching job that went to John Fox. "Throughout this process, we focused on finding the right coach with a proven ability to elevate our players and lead our team forward".
Arians succeeds Dirk Koetter, who was sacked shortly after the Bucs completed a 5-11 season with a 34-23 loss to the Atlanta Falcons. Bears defensive backs coach Ed Donatell could be the top choice for Nagy as defensive coordinator.
He also won 49 games over five seasons in Arizona. Arians' confidence in talking about Bowles being on his Tampa staff - when it still seemed up in the air - during a conversation with NFL Network's Rich Eisen on Wednesday seemed to indicate which way the wind was blowing.
As a middle schooler in Alabama, Winston attended a football camp ran by Arians and his son Jake.
His defensive coordinator will be Todd Bowles, who was his DC for the first two seasons he was in Arizona.
Tampa Bay has not officially announced any coaching moves at this time. Off the field, he received a three-game suspension for violating the league's personal conduct policy - a punishment stemming from a November 2017 investigation into groping allegations made against Winston by a female Uber driver. Jacksonville's Blake Bortles (76) is the only QB who's turned it over more over the past four seasons.
The Bucs are counting on Arians to help Winston realize his potential.