But Jim was more than just a typical CEO. He was the founder of AFTC, and the one dealing personally with their business contacts. Having said that, I think he would have made arrangements within his company once he realized the seriousness of his illness.
His right hand man, Ken Duryn, is obviously involved in all aspects of their engineering, product development, etc. Jim once called him their 'inhouse wizard'.
But that means they would need to bring in a new CEO to take over Jim's position. Perhaps we may hear something in the coming weeks/months.