To win at scale, you need more than great players – you need a team of great coaches. This Strategy Session episode is full of great advice and tactics for building that deep bench of mentors, each with a role to play. Working with great coaches is a skill that Alex Rodriguez learned in his first career in baseball, working with legendary skippers like Lou Piniella, and he's brought that skill to his work as an investor at A-Rod Corp., where he has struck up a firm friendship with none other than Warren Buffet. Answering questions from the two co-leads of HBS Class of 2021, Alex, along with special guests Katia Beauchamp of Birchbox and Mihir Desai of HBS faculty, shows you how to get the most out of mentorship – and how to make sure your mentors also get something out of the deal too.