TL;DR: Amazon allows for flexibility in projects by not encouraging employees to take advantage of preexisting tools. Instead preferring they risk reinventing t

TL;DR: Amazon allows for flexibility in projects by not encouraging employees to take advantage of preexisting tools. Instead preferring they risk reinventing the wheel with the idea that you use the tools that make the most sense for what you're trying to accomplish. This seems a little bit exaggerated. For example, I'm sure all these teams use AWS with no exceptions.