You hire a design firm because you like their portfolio work. As a client, you shouldn't have to ask if the same people responsible for the portfolio work are going to work on your project. My guess is that this is an assumption that most clients will make (I certainly would), so it certainly seems that their actions are a bit disingenuous.
I don't think the OP has any idea what amount of work the non-outsourced people in the project would be doing. For all he knows, the style he's talking about is the only thing the non-outsourced people ever do, and the rest are all code monkeys who do all the grunt work.
If you hire a company, and like their output, you're very likely overreacting if you find out they outsource regularly after signing on the dotted line. I mean, you know that 1/2 the stuff you get in a restaurant is created in factories, frozen then shipped there, right? Or is that fraud because everything wasn't created on premises.
