On the subject of "Lost"

No spoilers yet. Just a complaint. I find it hard to believe that this vast team of writers, capable of raising and discarding complicated plot strands and planning a Keith Foulke cameo two years in advance, can't come up with a more organic way to introduce two castaways who apparently were there all along, but weren't part of the cool kids' clique.

I am choosing -- for tonight, at least -- to believe in my own conspiracy theory. In which the ABC suits knock on the door of Lost, Inc. and order some extra characters who can periodically explain the back story to latecomer viewers. Oh, and these new castaways have to be hot. And the girl should look sort of dirty. "We want you to want to write them in," the suits say. And so our "Lost" writers comply, and do it lamely, out of spite.