There is fairly sizeable pool of proven NFL coaches available but Harbaugh generates more excitement than anyone except Gruden, Cowher or Tony Dungy.

FORBES: The Pursuit Of Jim Harbaugh

The move paid off, with Dungy laying the foundations for a side who, under the new regime of Jon Gruden, triumphed by winning a maiden Superbowl title in 2002.

CNN: Future bright for clubs united by Glazer