Monica Geller altered the trajectory of the entire series, having life-changing effects on its characters. Summarizing the role of Monica in the series, Martin Gitlin wrote in his book "The Greatest Sitcoms of All Time" that while her friends "were ... just out to make the most of their social lives", Monica "sought to keep the others in line" while searching for "Mr. Right", who surprisingly turns out to be close friend Chandler. Several years before Monica and Chandler became romantically involved, Cox once joked in an interview that if her character were to ever have sex with another main character, it
Bruce Geller "All in Love" (1961), but his efforts met with only modest success. Geller left New York for Los Angeles, where he was employed writing scripts for episodes of several television series, including "Zane Grey Theater", "Have Gun, Will Travel", "The Rebel", and "The Rifleman". He also worked as the co-executive producer of the "Rawhide" series for the 1964-1965 television season. While producing "Rawhide", he developed the idea for a new "cloak-and-dagger" series, "". In 1966, Geller created, wrote, produced, and directed "Mission: Impossible", the accomplishment for which he is best remembered. The show ran on CBS from 1966 to 1973