Abdi's two Arizona-based training partners, Marty Fagan and Ezkyas Sisay, have BOTH been busted for EPO. He also raves about Lagat who had the positive "A" sample and negative "B" sample.
http://www.usada.org/media/sanction-sisay5312012
http://olympictrials.runnersworld.com/2012/01/12/a-brief-chat-with-abdi-abdirahman/
Something is a little fishy here.