I believe there should be more conditions in the spectrum auction regarding rural build-out.
There should also be a process for “use it or lose it” spectrum. Often it is sat upon, with big plans to put into practice that are not followed up on by the industry department.
The question of whether you should change the process from an auction to something more like a beauty contest, which is what I think you're referring to, is a really fraught one. Years ago, PIAC opposed moving to an auction model for the reasons you give, which is that you lose control to some extent and it becomes an economic exercise. The economic incentive of making money from this thing outweighs all of the other concerns.
This committee can certainly recommend putting very stringent coverage requirements for those getting spectrum, and also for “use it or lose it”. That has not always been adhered to in the past, so I would definitely encourage this committee to consider that recommendation.
Changing the auction is probably a little too far down the track by this point.