> Don't estimate I agree. But in my experience, the real problem is out of the developers' hands: 1. On a project, my team worked hard not to miss any deadline

> Don't estimate I agree. But in my experience, the real problem is out of the developers' hands: 1. On a project, my team worked hard not to miss any deadlines. it worked, but the project was delayed for other reasons, and the PO told his superiors that the project was delayed because of the development team anyway. 2. On another project, my team didn't need to estimate or have a deadline. BUT at every meeting the boss said the project was behind schedule. WE WERE LATE EVEN WITHOUT A DEADLINE. Total nonsense. If your boss is crazy, your job has a lot of politics, etc, nothing will work, and this kind of environment loves to embrace Agile methods.