Is it because the company truly doesn't want to train up someone with some more advanced skills to support you on a regular basis? I don't know the business model of your organization and how your organization charges services which might make them cheap or maybe your organizations is intended to be reactive????

I think I made a good decision to be where I am now but I'm noticing that I'm very busy to a point where I will be overwhelmed shortly. Meanwhile another colleague sits less than 10 ft. from me, putzing away.

Nothing to do with my decision (of taking the jog) but a recurring imbalance. Fortunately I enjoy most of my work... Like you, I dislike seeing poor personnel management. I'm in an unionized environment.