While decreasing rotation frequency is definitely good, I'm not quite sure how is this supposed to help reuse? People will do what they need to to get their job

While decreasing rotation frequency is definitely good, I'm not quite sure how is this supposed to help reuse? People will do what they need to to get their job done, exactly the finding of the article. Would be better to tackle the root cause by e.g. having shared, federated accounts or roles. Of course, it's easy to say, but should be worth it in the long run.