[jon-wood]

You may not have much industry experience, but you’ve managed to hit the core of the problem. There is no one process that will work for every team, or even every project.

Every team at my workplace runs a different process. We’ve got a team developing new features who are running an iterative agile process, allowing them to react to changes ok requirements or unexpected issues with as little disruption as possible. We’ve also got a team doing B2B projects, essentially rebranding our mobile apps and platform for different companies, and that’s pretty traditional waterfall - I wouldn’t in a million years use waterfall for new features, but when you’re running through a set of well understood tasks that need delivering on schedule to coincide with work by third parties it gets the job done.