According to a report from the Sacramento Bee, the 49ers are looking at Mangini as a candidate to become the team's next defensive coordinator. Vic Fangio was let out of his contract last week when the 49ers made former defensive line coach Jim Tomsula head coach, and will become the Bears' defensive coordinator.
Mangini spent the last two seasons working on the offensive side of the ball after joining Jim Harbaugh's coaching staff with a defensive background. He has two different head coaching stints, totaling five years and a 33-47 record with the Cleveland Browns and New York Jets.
Before spending 2014 as the 49ers tight ends coach, he was an offensive assistant for Harbaugh in 2013. Mangini was Bill Belichick's secondary coach from 2000 to 2004, before becoming the Patriots defensive coordinator in 2005.
San Francisco's search for its coordinators has been quiet, likely by design, after hiring Tomsula last week. Former Raiders defensive coordinator Jason Tarver is the only known external candidate to speak to the 49ers about a major assistant coaching job. Tarver is close with Tomsula and is likely to be added to the staff. In what capacity remains in question.
Offensively, Alabama's coordinator Lane Kiffin has been linked to the 49ers' vacancy. As has Colts assistant Rob Chudzinski, who is reportedly interviewing for the Rams offensive coordinator job this week.
Tomsula, running backs coach Tom Rathman and quarterbacks coach Geep Chryst are the only holdovers from Harbaugh's staff. Although he worked on the offensive side of the ball, hiring Mangini would bring some semblance of continuity in an already-chaotic offseason for general manager Trent Baalke and CEO Jed York.
Baalke has said there won't be transparency on the organization's side when it comes to filling out the coaching staff. A report surfaced earlier Tuesday by FOX Sports indicating former Bills head coach Doug Marrone interviewed for the 49ers' head coaching position, which could indicate even more candidates were looked at than initially believed.
A notable name that remains on the open coaching market is Adam Gase, who was an apparent finalist for San Francisco's head coaching position. Gase has been passed over for a number of offensive coordinator jobs after the Broncos parted ways with head coach John Fox and brought in Gary Kubiak.
Along with the 49ers, the Jets, Bears, Browns and Rams are the remaining teams looking to fill offensive coordinator positions. Gase was passed over for the Falcons and Jaguars jobs this week, that were filled by Kyle Shanahan and Greg Olson, respectively.