I think the point the new director of NBIB was trying to make was that IF they could stick to the 40-80 day timeline, the backlog wouldnt matter. Of course if they could get them done that quickly there would be no such backlog.
Funny thing is, my periodic reinvestigation went pretty quickly (about three months as I recall). Its the ADJUDICATION that’s been dragging on forever. And I’m sure the factors that @datesnotrecalled mentioned (turnover, inefficient IT, training time) also apply to the adjudicative staff as well.