After a successful IPO in 1997 that made Bezos a millionaire, the CEO successfully navigated Amazon through the dot-com bubble. By the mid-2000s, Bezos had begun to expand Amazon's focus beyond online retail and into cloud-computing, video entertainment and devices. He took on far-flung projects outside of Amazon, such as founding rocket company Blue Origin, which he has funded by selling billions in Amazon stock.
In interviews, former Amazon employees suggested that Jassy's softer personality, along with the fact that he's not widely known outside of Silicon Valley circles, could end up working to Amazon's advantage as it stares down its critics. Jassy helped advise Bezos' next shadow, Colin Bryar, on how to take up the task. As Bezos' shadow, he interacted with Jassy during meetings with Bezos' S-Team, a group of top company executives, which would convene for four-hour breakfast meetings each Tuesday.
Jassy also has Bezos' penchant for pushing employees to think bigger. Bezos sometimes became fixated on a certain project and, to some employees' surprise, followed up regularly with teams to make sure they were on track.
A few simple math functions would probably be effective.