There's that old adage in communications: Show, don't tell. Instead of delivering speeches about the need to ditch the past and focus on the now, executives could make their point more effectively through this exercise.
In the company cafeteria they can string up a tight rope. Most human beings can navigate that if their body and mind are totally in the now. The minute they are distracted, that's when they fall. The message is clear.
After the exercise the tribe gets together and discusses how it felt to be in the now, not the past, not the future. No one will forget the insights, not for a long time.
I learned about that ritual last night at a Buddhist temple. At one of its rural retreat centers a tight rope is strung up several feet from the ground. Everyone gets it. The temple is thinking about introducing that learning experience some Wednesday evening, replacing the usual presentation and discussion.