I once had a leader come in and commit to not making radical changes, that he was going to listen and learn and then make adjustments accordingly. That was so refreshing and I really respected him as a result.

It feels like more often than not execs who come in and immediately change things are just pattern matching approaches they've seen previously without actually understanding what they're trying to change. A classic example is Marissa Mayer's attempts to Googlify Yahoo. You can't change a business model or a culture by doing a reorg. It's literally cargo cult behaviour.