This is a weird and unbalanced selection... I expected to see waterfall or some variation on here, but nothing like it, even though it is very common. Lots of mentions of evolving & fully-autonomous engineering structures without even mentioning how this interfaces with all the other parts of every company larger than a few people. Valve's approach is not really a methodology vs. a perk from generating ridiculous per head revenues for a pretty small company. Shape up can only work as described when your company is small and run by a benevolent dictator will complete control.