retrospectives

If you asked anyone in my team what agile practice is most responsible for our success over the past eight years, I bet they'd answer "retrospectives". At the start of every two-week sprint, we spend time talking about the previous sprint, identifying areas that need improvement, and thiinking of ways to overcome obstacles. But I wonder if it's not so much the retrospectives themselves, as the small experiments (to borrow Linda Rising's term) we try to address our problem areas.