The “Let’s Make a Deal” host talks about his ambition to build a consulting business based on the tenets of comedy improv: active listening, openness to collaboration and the ability to think fast on your feet. Brady, also a regular on “Whose Line Is It Anyway,” sees the “Yes and” philosophy of improv as a framework for helping youths develop self-confidence and critical thinking skills. He draws from his own story to explain why he is working to open youth-focused improv centers in Los Angeles and his hometown of Orlando, Fla.