One of my teams was so obsessed with velocity; they constantly stressed about doing ‘more.’ Yet, at the same time, they were not even able to get their velocity to a stable point. It turns out they cheated themselves out of good results.
We had to make substantial changes to the data structure of our legacy codebase. None of us had more than a few months of experience with working on this codebase, and the only thing we knew for sure was that there were millions of lines of dead code in there. And the changes were time-sensitive, too. How do you move fast in this kind of minefield?