The 49ers just made an interesting change to their offensive coaching staff. They promoted assistant passing game specialist Klay Kubiak to offensive coordinator. It's unclear how Kubiak's job will change.

The San Francisco 49ers are promoting Klay Kubiak from offensive passing game specialist to offensive coordinator, head coach Kyle Shanahan told reporters

The San Francisco 49ers have removed Nick Sorensen from his role as defensive coordinator and promoted passing game specialist Klay Kubiak to offensive coordinator, coach Kyle Shanahan said Wednesday.

Shanahan and Kubiak have long-time ties as their fathers worked together for years. Klay's father Gary, worked under Shanahan's father Mike for more than a decade. Mike Shanahan w

The 49ers have only had one other offensive coordinator by title since Shanahan joined the team: current Dolphins head coach Mike McDaniel