@zinhead your article doesn’t rebut Hanna’s comment. It’s actually a non-sequitor. Hanna’s point is about services that were never performed by faculty – no professor would work in the career office or health center.
The article raises the issue of the growth of administration vs. faculty, but doesn’t say why that is (at least not in the piece you shared.) And the real reason is that universities today provide more services than they did 40 years ago. They’re also more entrepreneurial than 40 years ago, due to dramatic decrease in state funding. For the most part, the increase in services and the increased need to set up, and run, programs that generate profits are the real reason for the growth of administration.
That for-profit online degree program (cash cows for many schools) or fancy study abroad program (ditto) requires IT support, staffing and management. In other words, administration.