So this concept is about setting goals that challenge you, "stretching" you perhaps a little beyond your current limits. I was curious what your experiences have been with this idea?

It seems some businesses do a bad job with these, perhaps stressing people out with unrealistic aspirations. Yet this is probably just a problem with setting the appropriate amount of difficulty and not inherent in the concept of stretch goals themselves.

Have you had any good experiences with the concept of stretch goals or any ideas on how to make them work better or any you're working on you want to discuss?