sentences:  Caltech astronomer Fritz Zwicky was brought in as head of the company's research department.Haley replaced von Kármán as Aerojet chairman and imposed payroll cuts instead of reducing JATO output; the alternative was to cut staff numbers while maintaining more generous salaries, but Haley's priority was Aerojet's contribution to the war effort.Company heads including Parsons were exempted from this austerity, drawing the ire of many personnel.