CPR? Starting surprise QBs when things looked bleak, and pull onside kicks and/or fake punts/field goals?
It's what I remember most from him aside from his speeches. IIRC people the exciting risk taking to cover up the fact that they were out of ideas or plans.
I guess I thought it was mostly because whatever QB was playing either sucked or got injured. For example, Richardson started that Kansas game because someone got injured. Jantz was bad, so someone had to replace him. I didn't necessarily think he switched quarterbacks for fun, but maybe he did.