Vic Fangio would target Kyle Shanahan as offensive coordinator and Ed Donatell as defensive coordinator if he is promoted to head coach of the 49ers, a source said Thursday.

Fangio, 56, who served as Jim Harbaugh’s defensive coordinator for the past four seasons, interviewed for the 49ers’ head-coaching vacancy on Dec. 30. 

Mike Shanahan also interviewed for the 49ers’ job. Kyle Shanahan would also be expected to be named coordinator if Mike Shanahan became the 49ers' next head coach.