I'm definitely not capable of doing what he does. Interacting with people is something I can do very, very well. But it costs me a huge amount of energy (introvert). And working with marketing/sales people takes more out of me than with any other segment of the population!

Regarding the Denny's -> Del Frisco's, that I could actually do well :). But that's because I have a special fondness for hospitality and providing people great experiences. I'd probably be foolish enough to open a restaurant someday, and I'd probably regret it later.