Maybe it's just my organization, but I see the behavior across the corporation far more than I'd like, and inevitably these people move on leaving a complex me

Maybe it's just my organization, but I see the behavior across the corporation far more than I'd like, and inevitably these people move on leaving a complex mess in their wake that long term support staff have to deal with. We seem to mostly manage to avoid that in my department, but we have a very low turnover.