[Leftcoast]

Hmmmhhh.... I think there were a few but I'm not sure how they worked out.  Two current ex-college coaches are effectively GM and Head Coach despite non-standard organizational structures.

This is from the Chip Kelly wiki page,

Kelly agreed to terms with the Philadelphia Eagles to become the team's head coach on January 16, 2013.[33] Although general manager Howie Roseman ran the team's drafts and free agency signings in his first two seasons with the team, Kelly had the final say over the 53-man roster.[34][35] He is one of three current NFL coaches who have either the title or powers of general manager, along with the New England Patriots' Bill Belichick and the Seattle Seahawks' Pete Carroll.

Of course Carroll had two previous stints as an NFL head coach so his situation is different.

[Leftcoast]

Hmmmhhh.... I think there were a few but I'm not sure how they worked out.  Two current ex-college coaches are effectively GM and Head Coach despite non-standard organizational structures.

This is from the Chip Kelly wiki page,

Kelly agreed to terms with the Philadelphia Eagles to become the team's head coach on January 16, 2013.[33] Although general manager Howie Roseman ran the team's drafts and free agency signings in his first two seasons with the team, Kelly had the final say over the 53-man roster.[34][35] He is one of three current NFL coaches who have either the title or powers of general manager, along with the New England Patriots' Bill Belichick and the Seattle Seahawks' Pete Carroll.

Of course Carroll had two previous stints as an NFL head coach so his situation is different.