Whether, in light of the rising budget deficit of the Republic which has been made worse by the economic impact of COVID-19, necessitating a need for the rationalisation of Government expenditure through, among other considerations, a rationalisation of the public service headcount, his department has introduced a rationalisation process of the staff complement in the public service; if not, why not; if so, (a) what are the relevant details and (b) by what date is the rationalisation envisaged to be completed?