DBEC got paper files in random order. SWA/Regional DOL offices did not follow the instructions fully. So DBEC entered them randomly and started processing, randomly. Only fully entered cases can be processed. They are delinked from paper files at that time.
Once DBEC completes full entry of all cases (DBEC is targeting june06 for this), there will
not be any excuse for random processing. Of course, the 45-day letter response is a paper thingy which has to be streamlined into the fully entered case (ie find the file, and put it in there, also probably scan it into system). This might still create some randomness. Given 6 months for just the 45 day letter thingy, by jan 2007 everything should be by PD (big difference that'll make!!! cases are supposed to be cleared by sep2007!!).
Apparently, PBEC has fully entered all the cases, and going more or less by PD. It has different set of issues with performance, though.
Long story short, DBEC order is random, and will be for all practical purposes.