Those teams definitely exist in agencies (GSA included), but we (18F) are managing ATOs internally for our projects, and are working on tooling to clarify, simplify, and automate the process. <a href="https:&#x2F;&#x2F;github.com&#x2F;18F&#x2F;control-masonry&#x2F;" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;18F&#x2F;control-masonry&#x2F;</a> is our first project around this.