The obsession in business schools and corporations with group exercises/activities may have gone too far.
As Susan Cain notes in the NYTIMES:
“Research strongly suggests that people are more creative when they enjoy privacy and freedom from interruption. And the most spectacularly creative people in many fields are often introverted, according to studies by the psychologists Mihaly Csikszentmihalyi and Gregory Feist. They’re extroverted enough to exchange and advance ideas, but see themselves as independent and individualistic. They’re not joiners by nature.
...
But it’s one thing to associate with a group in which each member works autonomously on his piece of the puzzle; it’s another to be corralled into endless meetings or conference calls conducted in offices that afford no respite from the noise and gaze of co-workers.”