When to Walk Away From $2 Billion America's top executives, including CVS Health CEO Larry Merlo, discuss some of their biggest challenges and how they solved them. Related Articles Stan Druckenmiller Piles Into Financials and Brazil as Health-Care Bets Fade Stephen Taub Maverick’s New Top Positions Deliver Both Gains and Setbacks Stephen Taub If Your Nonprofit Feels Stretched Thin, an OCIO Can Help Sponsored by Fidelity Investments