I could take a day long course in marketing and speak like a marketing exec..so what? That doesn't mean I'd be capable of solving real world marketing problems.

How about on day 2 the new web coder gets an assignment: The client wants an ugly picture to cascade in the background of their website and the client is thinking about moving all their data to Sharepoint because they heard it's best solution (no matter what the problem). You're job is to deliver the the correct solution. Go.