The first thing that came to mind when I saw your title "Back to Basic" was project management and customer service so I was glad to see the post!
Project management skills are an area of improvement required for the next generation of leaders and may be the heart of the ongoing education you refer to. It requires all the disciplines including delegation you mentioned. Boomers with these skills have an opportunity to mentor as they redefine retirement. You are in demand, Valerie!
Customer service is the easiest way for people and companies to separate themselves from the pack. Genuine internal and external service experience will attract great employees, vendors and clients/customers!
Communication is the most difficult and requires the most self-awareness first and good decisions on being on the right teams, etc.