> A new chef at the highly rated San Francisco restaurant Ducca decided to make his mark by adding chili to some pasta dishes and grapes to others — with bad results.
I can't say anything about this specific restaurant, but this statement seems like it could just as easily be considered an opinion rather than treated as a fact.
Another consideration is that one leader may be highly skilled in a given trait while anther leader has a completely different core set of traits which force change to take place when there is a change of leadership. Changes in leadership style are typically changes that reflect the competency range of one leader compared to another.
Politics is especially filled with the sort of criticism that changes are being made "for the sake of change" so that someone can challenge if the change is meaningful, because there is no perceived value of that change to a person who disagrees with the change.
I don't know how this could even be quantified, but I disagree with the assumption that changes are typically made simply "for the sake of change".