It seems to me that every generation has to learn about IT the hard way. Not just devs but also MBAs. The problems that your IT guy solves are not going away.

1. How to glue disparate systems together.

2. Determine what services to standardize on.

3. Prevent business types from choosing tech sizzle over steak.

4. Translate technology to human readible form.

So long as control and management of information is important to businesses there will be sysadmins.