Yesterday, I shared why I love what Andrew Carnegie said about why you should put all your eggs in one basket, which is counter to how most people think. It’s simple, but it’s far from easy to execute. And even if you execute it well, success isn’t guaranteed.

Picking the right basket to put all your eggs in is the hardest part of execution. Whether you’re founding a start-up or making a concentrated investment, this choice is critical. And you must have conviction in your decision so you can weather the inevitable ups and downs. Therefore, you can’t haphazardly pick something based on a whim. You must do the work to deeply understand each of your options. Doing the work often leads to what others might consider an obsession, but it’s what uncovers the insight that others miss—the insight that reduces your risk, tilts the probabilities in your favor, and helps you build the conviction needed to go all in.

Andrew Carnegie’s method isn’t something that everyone is suited for. Making that kind of decision and sticking with it to the end requires mental grit and toughness. But for people with the right mind-set, when it’s done well, it can lead to outsize results.