Very amusing.
But to answer the question my take on the situation is something like this.
1. Crowd turn on Hughton at the end of the WBA game. Board now feel there is nothing to lose and any roll of the dice is better than none. Possibly there was not unanimity in this decision.
2. NA is appointed as manager. This is crucial as without those 5 games he would not have been a candidate at all. NA's appointment is not as caretaker but neither is it permanent!
3. At the end of the season McNally states the permanent manager appointment will be made by the following weekend and, again crucially, that NA is a genuine contender.
4. Things do not go to plan and the somewhat unwise self imposed timescale is exceeded.
5. The Radio Norfolk interview is offered to explain the delay. Things are stated to be complicated and that NA remains a contender.
6. Negotiations with external candidate(s) fail. Something must have been in the pipeline as evidenced by Delia's things are complicated comment.
7. The board have now backed themselves into a corner. A potential external appointment has not come to fruition and they are now left only with the internal candidate who has been stated on more than one occasion as being a genuine contender.
8. So now it is decision time, do they backtrack on their publicly stated views that fundamentally say that they believe NA can do the job, or do they go with him even tough they realise it is really an act of faith as whilst he may well have interviewed well the experience to evidence his credentials is pretty thin on the ground.
9. The decision is made to appoint NA.
Well that's my interpretation of events anyway. Could be way off the mark of course!