McDonald’s is on its fourth CEO in eight years. Yale’s School of Management and CNBC contributor Jeff Sonnenfeld puts its most recent corporate exit into perspective. Joe, Becky, and Andrew discuss the federal accounting probes facing Under Armour and whether a four-day workweek could improve a company’s bottom line. Former FDA Commissioner and CNBC contributor Dr. Scott Gottlieb and Obamacare advisor Dr. Zeke Emanuel debate all $20.5 trillion of Senator Warren’s Medicare for All plan. Plus, Kickstarter’s co-founder Yancey Strickler has made a business from crowdsourcing, and he’s learned a lot about generosity in the process.