Jim Harbaugh sends a message to the 49ers

When the 49ers promoted defensive line coach Jim Tomsula to head coach, all members of head coach Jim Harbaugh’s staff (other than running backs coach Tom Rathman) were let go.  Harbaugh’s coordinators have since landed elsewhere in those same roles. On Wednesday, Harbaugh issued some congratulations via Twitter. “Congrats to Bears, Raiders, Bills, Great Coaches…