The problem is that at relatively senior levels in the Civil Service rotation is common and indeed almost a requirement for advancement. In much of industry you can progress in the same silo so you retain a great deal of experience along the command chain.
It's always interested me that Dennis Healey became a real power in the land by sticking in post for so long he'd outlived all his Civil Service advisors. Ministries with a quick turn over of Ministers (such as Defence these days) are often the worst run