To have a musician or author or composer on the board is a very interesting idea. However, you still need to have someone who is professional and who knows the business almost inside out to make sure they can bring some perspective to the board and the decision.
As for the lengthy decision process, maybe there are some resources that are deficient. Also, I think it's the process itself. Evidence is submitted; then there's a delay, and then the other parties submit evidence. It's about building up cases, and it's taking time.
I used to work at SOCAN in the licensing department. I was not directly involved with the Copyright Board. I remember when the cable tariff was proposed in 1990 and was first approved in 1996. I think the first Internet tariff was proposed in 1996 and the first decision was in 2004.