On Thursday, 49ers GM John Lynch announced that they’ve promoted Martin Mayhew has to VP of Player Personnel, per Matt Barrows.
Mayhew will share the title with Adam Peters.
Mayhew, 53, was promoted to interim general manager of after the Lions fired Matt Millen back in 2008. He was eventually hired on a full-time basis and spent eight years with Detroit.
The Lions elected to fire Mayhew after the 2015 season and hired Bob Quinn as his replacement.
Mayhew took a position with the Giants as their director of football operations/special projects for the 2016 season and joined the 49ers in 2017 as a senior personnel executive.
During his time in charge of the Lions, Detriot produced a record of 41-63 (39.4 percent).