Almost a year ago, we published a case study looking at the corporate break-up of the venerable Kellogg Company into two separate businesses: Kellanova (snack foods) and WK Kellogg (breakfast cereals). From the announcement through the present, Kellogg shareholders have earned an annualized total return of 11.2%, far outpacing the returns of peer publicly traded packaged foods companies. Last year’s post included five takeaways for family business directors. In this week’s post, we reiterate those original takeaways and add a sixth.