I had the same experience, in a longtime waterfall company, that adopted Scrum, with significant pain points but it was still a world of improvement. The thing

I had the same experience, in a longtime waterfall company, that adopted Scrum, with significant pain points but it was still a world of improvement. The thing that the Scrum haters don't see is that its biggest benefit is invisible -- it's in what doesn't happen, in what Scrum avoids. Scrum avoids the eighteen-month waterfall death marches that kill a department or a company. Scrum gets you thinking in terms of managing scope, of pacing deliverables, of thinking of a list of prioritized "wants" as you say rather than a dictated set of commitments. Scrum makes you approach development as it has to actually happen in the real world, rather than as a dictated plan that inevitably won't survive contact with adversity. Of course it's completely possible to still mess that up, with overzealous adherence to process and ceremony and metrics. It's very possible to run Scrum as a set of perpetual two-week waterfalls -- and very possible that that's still a great improvement over two-year waterfalls.