That's a fair point and board are culpable. Our strategy of appointing relatively inexperienced managers bore fruit twice (even if second was a bit undigestible at times). I suppose this is realisation of the risk.
But in business - and that's what this is - if senior appointments don't work...
I'm all for giving people a fair chance. And don't like the managerial merry go round that has been imported to the English game in last 20 yrs.
But if I ran a restaurant and my new head chef seemed to struggle with basic recipes and consistently used the wrong ingredients I'd probably sack...