Plot holes in GoF - Moody and rewritten "One more Death"

[katrionabowman]

No: HPFGUIDX 32306

> --- In HPforGrownups at y..., Margaret Dean <margdean at e...> wrote: 
> My wild guess:  JKR originally meant for Crouch Jr. (or whoever) 
> to have killed Moody and taken his place, but in the course of 
> writing him she decided the character of Moody was Just Too Cool 
> and that she wanted to use him (Real!Moody) later.   

Interesting theory. If Moody was indeed meant to be the "one more 
death", but was rewritten to remain alive, I wonder if this was the 
reason:

JKR quoted in interview at http://www.hpgalleries.com/c109.htm

"What happened on Book Four, and one of the reasons why it was easily 
the most difficult to write, which had absolutely nothing to do with 
Harry being famous or me being famous, was that for the first time my 
plan fell down. I got halfway through and realised there was a huge 
gaping plot hole. The two ends just didn't meet. It was entirely my 
own fault: I should have had the sense to go through it very 
carefully before I started writing. So I had to do an enormous amount 
of unpicking..."

Have any views been mentioned yet as to what this plot hole could be? 
I'd be grateful for a brief summary or pointer in the right direction 
if so.

KT in Seattle