(1) (a) How many critical positions are vacant in his department, (b) in which areas are these positions available, (c) how long have these positions been vacant and (d) what are the reasons for these positions not being filled in the 2009-10 financial year; (2) whether any plans are in place to fill these positions; if not, why not; if so, (a) what plans and (b) when will these positions be filled?