But you can’t just not review things!

Actually you can. If you shift the reviews far to the left, and call them code design sessions instead, and you raise problems on dailys, and you pair programme through the gnarly bits, then 90% of what people think a review should find goes away. The expectation that you'll discover bugs and architecture and design problems doesn't exist if you've already agreed with the team what you're going to build. The remain 10% of things like var naming, whitespace, and patterns can be checked with a linter instead of a person. If you can get the team to that level you can stop doing code reviews.

You also need to build a team that you can trust to write the code you agreed you'd write, but if your reviews are there to check someone has done their job well enough then you have bigger problems.

This falls for the famous "hours of planning can save minutes of coding". Architecture can't (all) be planned out on a whiteboard, it's the response to the difficulty you only realize as you try to implement.

If you can agree what to build and how to build it and then it turns out that actually is a working plan - then you are better than me. That hasn't happened in 20 years of software development. Most of what's planned falls down within the first few hours of implementation.

Iterative architecture meetings will be necessary. But that falls into the pit of weekly meeting.

I've worked waterfall (defense) and while I hated it at the time I'd rather go back to it. Today we move much faster but often build the wrong thing or rewrite and refactor things multiple times. In waterfall we move glacially but what we would build sticks. Also, with so much up front planning the code practically writes itself. I'm not convinced there's any real velocity gains in agile when factoring in all the fiddling, rewrites, and refactoring.

> Most of what's planned falls down within the first few hours of implementation.

Not my experience at all. We know what computers are capable of.

> I've worked waterfall and while I hated it at the time I'd rather go back to it. Today we move much faster but build the wrong thing or rewrite and refactor things multiple times.

My experience as well. Waterfall is like - let's think about where we want this product to go, and the steps to get there. Agile is like ADHD addled zig zag journey to a destination cutting corners because we are rewriting a component for the third time, to get to a much worse product slightly faster. Now we can do that part 10x faster, cool.

The thing is, at every other level of the company, people are actually planning in terms of quarters/years, so the underlying product being given only enough thought for the next 2 weeks at a time is a mismatch.

I think the bigger issue is that Waterfall is often not "Waterfall".

Sure there's a 3000 row excel file of requirements but during development the client still sees the product or slides outlining how the product works and you still had QA that had to test stuff as you made it. Then you make changes based on that feedback.

While Agile often feels like it's lost the plot. We're just going to make something and iterate it into a product people like versus figuring out a product people will like and designing towards it.