"Something is wrong", what exactly? We've had four or five different owners/chairmen in that time (Lowe, Wilde, Crouch, Dulieu, Cortese, Krueger - so 6 actually) what are you suggesting is the overall problem binding all of them?
Why not check similar stats for the rest of the Prem teams - or even better, for teams that have had two relegations, two promotions and an administration in that period.