> A perf improvement that takes something from hundreds of minutes down to 1.2s does make the person who did the original implementation look bad. But does it

> A perf improvement that takes something from hundreds of minutes down to 1.2s does make the person who did the original implementation look bad. But does it have to? I've worked at both ends of the spectrum, from quick-to-pounce (what you describe) to mature assessments (e.g. "This product is important and makes us profitable, but there's still some rough edges. Glad you had the resources & capability to improve it!") Fortunately my present team & entire company is closer to the mature end. I also agree that most teams in a large company will reflect company-wide values.