Scrum is waterfall in disguise and it always has been. I have never seen scrum be anything but a catastrophe, or a token gesture to appease those who would replace accountability with process.
Thing is, Scrum doesn't work for most of the organization.
Sales use a sales funnel as their guiding organizational tool. IT operations and support do reactionary work on incoming tickets, and some rather routine and planned projects. HR is almost all routine paperpushing. Legal has to take the time it takes to answer the questions they get, because they have to answer correctly. Market analysis is timeboxed analysis - a spike in agile lingo. Hardware design is innately waterfall. Hardware production is just mindless repetitiveness as fast as you can go... and so on...
I have seen scrum turn into hell more then once and it had zero to do with rest of organization doing anything. Literally each time, there was no evil customer pressuring us too much or making bad demands, nothing like that.
