Is Jim Harbaugh the designer Mike Shula?

I was listening to the road to Saban podcast and it reminded me of a few similarities.

Shula never finished higher than 3rd in his own division.
Harbaugh had never finished higher than 3rd (until this past year where he lost once again to his rival).

Shula answered "momma's call" to come be a head coach here from a good NFL job.
Harbaugh answered "momma's call" to come be a head coach at UM from a wealth of good NFL opportunities.

Shula's best wins (05 UF and 05 Texas Tech) depended on stifling defense.
Harbaughs best wins have come from his stifling defense .

Shula's offense was often left wanting against the best teams, depending on clutch plays from elite playmakers. His in-game decision making was often quite suspect, culminating in the 06 Iron bowl.
Harbaugh's offenses have been unimaginative and he regularly has been blown out by the best teams he has faced because he can't keep his defense off the field. This is partially due to his dependence on a few elite players to make stuff happen despite mediocre playcalls and decisions.

Shula went 1-11 against his rivals ( UT, Aubarn, and LSU)
Harbaugh has gone 2-6 against his rivals (Mich St. and OSU)

They also are the sons of much more successful NFL head coaches and may not even be the 2nd most successful person in their own families. (Dave Shula was responsible for the Shula Steakhouse rise).