You forget, this is a school. That means the "IT admin" is really the English teacher who has never done anything like this before.
I'm not kidding, none of the people who make the decisions have ever done this before. When budgets get cut they fire support staff first then when they need them back they post a job offer for like $12/hour for a new IT guy. They mostly get what they pay for.
But in the end it will work out. After all some kid gaining access to Facebook is not the end of the world.
I know of this one high school district that was thinking of replacing IT workers (keeping the manager at each though) with each high school's IT Club members. They would work on equipment after school and during school, they would fix problems in the main day during study hall.
How about that for saving money?
I'm having a bunch of issues on iOS7 with my iPad 2 - seems like they designed it for the iPhone and just threw it onto the iPad and just crossed their fingers...