Gotti rapidly became dissatisfied with Castellano's leadership, regarding the new boss as being too isolated and greedy. Like other members of the family, Gotti also personally disliked Castellano. The boss lacked street credibility, and those who had paid their dues running street level jobs did not respect him. Gotti also had an economic interest: he had a running dispute with Castellano on the split Gotti took from hijackings at Kennedy Airport. Gotti was also rumored to be expanding into drug dealing, a lucrative trade Castellano had banned.