My alternative 3 year plan, difficult though it may be, would be to get relegated to League 1..... manager walks/sacked....club goes into administration, owners cut their losses (and embarrassment) ....club is rescued by a proper football loving owner/consortium....the crumbling St Andrews is rebuilt/relocated locally giving a solid infrastructure.
Build a solid team structure with a modern, forward thinking manager.
Ok, it may take a little longer, but after 45+ years of my love affair with Blues, like a marriage, it needs spicing up!
Some pain would be needed in the short term, but hey a fair few of my years with Blues have been painful..... I've seen the likes of Leicester, Southampton and Wolves in that position in recent years and they've not done bad for themselves!
Of course, in reality success would not be guaranteed, but it would be a hell of a lot more exciting starting over with the right people at the helm.