After 12 years as CEO, Pepsico announced that Indra Nooyi is stepping down in October. Jason Moser analyzes her tenure and shares why the next CEO has very big shoes to fill.  Plus, we discuss Berkshire-Hathaway’s 2nd-quarter results and Facebook’s discussions with banks regarding a new feature for Facebook Messenger. Thanks Handy. To get your first 3-hour cleaning for $39 when you sign up for a plan, visit Handy.com/fool and use promo code “fool”.