Brock - I understand your frustration. However, consider the ShowMe Center does not exist as a music venue. It is a multipurpose venue. They have no charter to serve the music community, and in fact promoting concerts is a risky business. This state owned facility is not in the business of taking unnecessary risks - your tax dollars fund the place. Regarding Mr. Ross, while I know him only casually, I do know he has served as the president of IAAM (International Association of Assembly Managers) and has managed to keep the place in the black all these years. Why should Mr. Ross be fired just because some handful of disgruntled local musicians don't care for the concert calendar? The place makes money on gun shows, car shows, and concession sales at sporting events. It's not a concert venue.
Again, I totally understand your frustration, but railing against SMC and calling out David Ross over the lack of concerts will not accomplish anything.
And no, the River Campus will probably never promote rock concerts because that's not what the place is for.
If you want to cause positive change, spend your energy where it might actually get something done. Both of these avenues are a dead end for your cause.
If you are so certain of your talents and abilities, why don't YOU assume the risk of renting one of these venues to promote a show? Do that, and you have something to build on. Otherwise, your comments fall on the community ears at large as mostly sour grapes.
IOW do something about it, rather than just bitching about it. Everyone has complaints but it appears no one is willing to step up to the plate.

This is a tough one, but I remember as a teenager (I'm 29), I loved the RATM song "Bullet In Your Head" (I think was the name of it)....haha, not cause I wanted to shoot someone, but because of the lyrics "Fuck you I won't do what you tell me" that was repeated over and over several times. It was a great 'rebellion' song. To the 'establishment', to the 'man', to 'parents' - FUCK YOU I WON'T DO WHAT YOU TELL ME! haha
Now I'm a responsible adult. Wonder what the hell happened? lol