For Matt Scott, the realities of a manager's job have proved to be a not-so-satisfying experience. Matt has worked since November 1994 at Fore Systems Inc., a fast-growing computer upstart company based in Pittsburgh. Fore's capabilities are in an area of tech nology known as asynchronous transfer mode (ATM), a computer networking system that allows vast amounts of information, including real-time video and audio, to be delivered at a far faster rate than most existing systems do. Organizations that need instantaneous access to shared information are clamoring for this type of software capability, and Fore Systems is on the cutting-edge of this technol- ogy. From the time Fore went public in 1994 with about 200 employees, it has grown to more than 1,400 employees, with annual revenues surpassing $400 million