Key people have been leaving IBM’s Santa Teresa laboratory where the development work is done on products like the DB2 database management system, most recently Leonard Liu, who is succeeded by Thomas Furey Jr as assistant general manager, IBM Programming Systems, and site general manager at the Santa Teresa Lab, which is in San Jose: Furey was director of IBM’s Rochester, Minnesota development laboratory, and in previous assignments, managed the development of 21 releases of IBM’s System/360 mainframe operating system, helped define the process currently used to develop software products throughout IBM, and helped launch Systems Network Architecture, while last year, as director of the Rochester lab, he led programmers, engineers and planners in the development and introduction of the AS/400, and IBM is no doubt hoping that some of the magic of that machine will rub off on the troubled DB2 development and, presumably, microcode for the 3990 3 disk controller that is holding up IBM’s 1989 top-end plans.