Cutting government spending, especially by $6B, by 'finding inefficiencies' and not cutting services or payroll is a quadrennial ruse perpetrated by every party, especially considering that 2/3 of expenditures are either stated as untouchable (health and education) or non-discretionary (debt interest). I began a 31 year career as a public servant in 1973 and first heard the term 'do more with less' in 1974. Roughly (very), salaries/wages and benefits account for approximately 70% of expenditures.
The very way that spending reduction occurs dooms it to failure. The edict goes out from Treasury Board to the various Ministers, whose staff not only supports the minister but also the mandate of the ministry. Staff there includes areas such as policy, communications, possibly HR, etc. and are fairly connected and high profile within the workings of the ministry (ever received a reply letter from a minister and naively thought they have actually even seen it? There's a department for that). They are not stupid - they are not going to fall on their sword for the good of the province and the Minister will claim that they are crucially important work of the ministry (read: him/her). So it flows downhill through decreasing levels of people able to protect themselves and their little empire until you end up with some poor worker in a field office in Blenheim, Chapleau or some such place - somebody actually at the pointy end of the ministry's stick - either getting 'surplussed' or ending up with no operating budget to do anything. During the major cut-backs and 'reorganization' of the Harris era, field offices of every ministry were closed or reduced all over the province but I didn't see an echoing vacant halls around Queen's Park. Some, like the MNRF, have been on life support for years. You know how your employer measures the significance of your duties when a key factor in your ability to go out and do it is whether you have enough gas in your truck, because there is no money for more until next month.
Another problem with cutting staff is there is no accompanying reduction or streamlining in the way the government does business, so the survivors of the purge become increasingly inefficient and demoralized. An astonishing percentage of government workers have nothing to do with the delivery of the various programs and services, but are only employed to keep the bloated bureaucracy going or to support broader government programs that have nothing to do with that particular ministry. Multiple levels of accountability have nothing to do with ensuring accountability at all and actually do the opposite. Minor studies, reports, or even things like expense accounts, are required to be parsed through many hands, ensuring that the owners of those hands remain gainfully employed and that their managers have a department to manage.
Can money be saved by streamlining the very way government operates? Sure. Can it save $6B? Not a chance, even with service and staff reductions. Can it save $6B through wholesale program elimination? Possibly. They might play the payroll shell game of contracting out staff and services to get them off the books, but it's still money spent, and the entire process of government spending is pretty much a shell game anyway.