I'll second the concerns at touting FrAgile (TM). Too many teams woefully underestimate the level of work yhat goes into maintaining the full delivery of product, and the fact that as you scale up, process has to be in place to keep people working independently without running into issues.

Waterfall's issue was that it stipulated there shalt be process from stage 1 before anyone even understands WTF anyone is doing. FrAgile(TM) is notorious for just cutting people loose and winging it, with no regard to system design, architecture and maintaining a cohesive whole over the entire process that keeps your business functioning.

You can't just NOT make SOP's you can't have an onboarding process that can't ne negotiated by the average person. Doing so is a recipe for burnout/churnout and failure.