How did lamb become one of our most cherished national foods? And can job sharing work for senior roles?

So how did a ‘by-product' of the wool industry become what historian Barbara Santich calls a 'cultural superfood' and how did the farming of this food forever alter the Australian landscape?  And Professor Rosalind Dixon looks at different models of job sharing, how it work for both businesses and employees, and whether this presents a new model for leadership.