Change doesn't happen just because of a study or well-worded position paper. You would be better putting the money forward for a person to write a policy for attracting the right kind of people to the ATC profession and retaining these people for as long as possible. Only then can one provide better services and lower levels of class E.
No ATC I know opposes more safety, what they don't agree with is trying to provide more and more with the same or less support (technology and humans). This is in fact less safe - overloading both the controllers and the system. We need more bodies and more consoles.
Cheers,
NFR.