Asana CEO and Facebook co-founder Dustin MoskovitzPATRICIA DE MELO MOREIRA | AFP | Getty ImagesDustin Moskovitz, the CEO of Asana and one of the original founders of Facebook, is retiring from the software company he started in 2008.Asana announced Moskovitz's retirement on Monday as part of the company's fiscal fourth-quarter earnings report, and its board has retained an executive search firm to help choose a new CEO. Moskovitz notified its board "of his intention to transition to the role of ...