Derek Smith has joined the Consolidated Interconnect Division of National Cable Communications as national inventory manager. He had been on NCC's American team. Sandy Castonia has joined NCC's CID as manager of traffic and billing. She had been software-support engineer at CCMS Inc. David Smith has joined the division as director of technical operations. He had been with the Greater Washington Interconnect. Rich Attardi has joined NCC as regional team sales manager in New York. Attardi had been sales manager at Metro Channels.