> Here's a process that works: leave me alone to get the job done, and I'll report progress to you regularly. Leave the manager out of my day to day activities. In fact keep everybody out of my way.

Hah, I almost said that that's where this genre of agile criticism seems to come from: the coder who believes they can produce a good product by writing good code without interacting with a customer and so regards any process as an impediment, and isn't actually attacking agile so much as attacking the very concept of process. What you propose is a good way to produce elegant code that doesn't actually do what the customer wanted at all; even if you personally can magically understand the requirements every time, a customer (or a manager) is right to be skeptical, because most programmers can't.