Concerning outsourcing at the WTBTS:
In a few weeks I may be proven wrong on this, but I don't see where the WTBTS has much profitable opportunity in outsourcing more than a few of its operations.
Remember that the WTBTS operates for the most part on the "slave enterprise" system and has no reason to pay any third party a competitive price for whatever service it can obtain from "volunteers". Most of the work of running the corporations (printing, farming, food service, cleaning, etc.) can easily continue without any outside assistance as long as the flow of healthy young workers doesn't run dry.
Other areas can be handled by a third party, and one of these, the Charitable Gift Program, has been around for a few years. Others include information technology processing, travel arrangements, vehicle support, and accounting; but the total number invoiced in these likely pales in comparison to the unskilled and semi-skilled worker count.
Downsizing the printing and printing support "volunteer" staff is contraindicated in absence of a significant revenue drop; it is their main revenue source. As long as there is money coming in for the literature, they can't cut staff unless they think they can somehow boost working productivity. But they already have a 44 hour work week combined with field service requirements; do they plan on dropping the FS quota and increasing the work hours? Would many "volunteer' workers put up with a fifty or sixty hour work week?
One change I could see happening is to pressure the parents of the younger "volunteers" to make expense "contributions" (room and board payments) of, say, US$50 to US$100 per week directly to the corporations. The WTBTS might be successful in this as I suppose most younger "volunteers" have at least one parent sufficiently brainwashed to go along with the scheme.
The WTBTS could try encouraging older workers to leave inorder to replace them with younger one perceived as more productive and healthier, but this could result in age discrimination lawsuits.