Whether one believes Christine Day resigned as Lululemon's CEO or was pushed out after her five-and-a-half year tenure, she is leaving not only at the right time but in the manner a true leader should.

Shortly after the announcement three months ago that Lululemon would recall the now infamous, see-through black Luon yoga pants, Chief Product Officer Sheree Waterson resigned. She was responsible for product quality, and her leaving at that time undoubtedly reinforced a culture where accountability means something.