Are you suggesting that consultants are cheap? If you think you'd save money by paying them each $250/hour to sit around a table and talk about it, then go right ahead.
Privatizing Eglinton is maybe the best way forward for Ford. No one wants to touch a privatized Sheppard, but Eglinton will actually have some ridership. It could still be integrated into the TTC, just as a premium service or with City revenue redirected to private partners. If someone is willing to pay to build a subway, they should be entitled to part revenue for it's lifespan (~50 years). If it's the provience, it's a tax burden. If it's a private entity, it's only a revenue drain. The second is the easier political sell.