Wonderful post Deb.  And no, I didn't pre-approve it. I just read it.

To answer your questions, I know of few organizations where titled positions turn over on a schedule. I know many where they turn over for positive (promotions, etc.) reasons and for not-so positive ones. In fact, I have both turned over and been turned over. :-)  I think change provides opportunity and I don't have a long attention span, so I'm generally for a change.

Maybe leaders and business owners could turn-over by taking subordinate roles on some important projects.  I think many businesses, especially those with hierarchical org structures, have too few seats "at the top" (positional leadership) and can't create an environment where those "positions" rotate.

I do believe certain types of character-based leaders can keep a leadership position for a long time and be awesome. It requires adaptability and humility and an open mind.  Even then, everything does come to an end. I think of successful coaches, etc.  After a while, they people or the effort they lead requires more change than the individual can adapt to.

Thanks again for the thoughtful post and the dialogue.  Great comments by all!