The most obvious fucking answer: "Won a BCS Championship"! That's what happened to them!
I have no interest in doing the research to find out "what became of Nick Saban's first 2 classes". I looked at them on Rivals, and to start with, there's 57 in the first 2 years, which tells me right off the bat, 7 didn't come to campus immediately. Then I see names like Jeremy Elder and Star Jackson, which brings it up to 9 that got processed in some way. At a quick glance I see more than half with names that leave me saying "who the fuck was that" but there may have been some that contributed that remained largely unknown names. So if some bammer wants to put in the work, let us know how much better bammer's attrition rate is to make Auburn's "newsworthy."