Rickenbacker pushed Eastern into a period of growth and innovation; for a time Eastern was the most profitable airline in the post-war era, never needing state subsidy. In the late 1950s Eastern's position was eroded by subsidies to rival airlines and the arrival of the jet age. On , Rickenbacker's position as CEO was taken over by Malcolm A. MacIntyre, a brilliant lawyer but a man inexperienced in airline operations.' Rickenbacker's ouster was largely due to his reluctance to acquire expensive jets as he underestimated their appeal to the public. A new management team headed by Floyd D. Hall took over on 16 December 1963, and Rickenbacker left his position as Director and Chairman of the Board on December 31, 1963, aged 73.