Viacom's co-president Leslie Moonves has overhauled the management team of in-house studio CBS and sister company Paramount in a move that aims to consolidate the two divisions and boost lagging performances.

Moonves, who became co-president/co-coo of the US media titan in May, has promoted his second-in-command Nancy Tellem to president of the CBS Paramount Entertainment Group. She will be succeeded by former CBS drama head Nina Tassler.

Also on the up is David Stapf, head of current programming at CBS. He will step into the shoes of Paramount president Garry Hart, who is leaving to become an independent producer.

The executive reshuffle comes almost a month after the studios' international operations were merged and goes hand in hand with Moonves' vision of a more integrated operational system.

The merged CBS Productions/Paramount Network Television will operate from Paramount Studios under the Paramount name, although the CBS Productions brand will be used for some programs. Paramount, which currently provides JAG and NCIS for CBS will now produce more television shows specifically designed for the network.

As for Moonves, he will continue to serve in his current hands-on role overseeing program decisions at CBS, claiming "You know me, I'm going to stay involved."

Data sourced from: New York Times; additional content by WARC staff