Warner Bros. TV has completed its development team restructure, upping Marianne Cracchiolo Mago to head of comedy and renewing Susan Rovner’s deal as drama chief.

Cracchiolo Mago and Rovner will report to new development exec VP Len Goldstein, who takes on the No. 2 position under Warner Bros. TV prexy Peter Roth effective June 1.

“This team has achieved remarkable success, and with our executives now ‘locked and reloaded’ for the next three years, we feel confident and poised for the future,” Roth said.

Cracchiolo Mago takes over the position formerly held by Goldstein, who was upped last month after Steve Pearlman left to set up his own production pod at Warner Bros. TV. Cracchiolo Mago has been VP of comedy development since August 2002.

Cracchiolo Mago’s development experience includes hit WBTV laffer “Two and a Half Men,” as well as the pilots “Joey,” “Center of the Universe” and “News to Me.” She joined the studio from Brillstein-Grey, where she was VP of development.

Rovner signed a four-year deal to continue leading Warner Bros. TV’s drama development team. The exec has been senior VP of drama development since May 2002, working on “The O.C.” and “Cold Case,” as well as upcoming WB network entries “Jack & Bobby” and “The Mountain.”

Rovner joined the studio in 1998; before that, she was exec director of TV movies at ABC.

“In a short time, Marianne has made her mark here, recruiting some of our top talent, while Susan has assembled a challenging and diverse slate of programming,” Goldstein said. “They both have the unique ability to help translate a vision from the idea to the script to the screen.”