Jet Airways has hit its first roadblock; just ahead of the re-launch, three top executives resigned from their posts giving rise to speculation in the Indian aviation industry. Vishesh Oberoi, director of flight operations; Neeraj Chandan, director of flight safety; and Sorab Variava, director of training, have all resigned in the last month. All three executives are nominated post holders under the rules of the Directorate General of Civil Aviation (DGCA, India). This mandates the airline to fill all three posts before launch. As per sources, Jet is already planning to fill up the posts by the end of this