Vernoff, Rob Corn, and Mark Wilding. The staff writers were Rhimes, Parriott, Ann Hamilton, Vernoff, Kip Koenig, Mimi Schmir, Gabrielle Stanton, and Harry Werksman, Jr. The directors throughout the season were Peter Horton, Tony Goldwyn, Adam Davidson. John David Coles, Scott Brazil, Darnell Martin, Sarah Pia Anderson, and Wendey Stanzler. Rhimes served as the season's showrunner. She and Horton, who wrote and directed the first two episodes respectively, would also have written and directed the season's final two episodes, had they not been transferred into the second season. The show was announced in late 2004 as a mid-season replacement for Boston Legal. It was originally scheduled to run in the Boston Legal time slot for just four weeks, but after receiving high ratings remained in the time-slot for the remainder of the season. ABC Entertainment President Steve McPherson commented on the scheduling decision: "Ultimately we decided that, without having adequate lead time or marketing dollars to devote to moving either show so late in the season, we'd continue to let Grey's build on its tremendous momentum through May". Prior to broadcast, it was announced that the show's title would change from Grey's Anatomy to Complications, although ultimately this did not come to pass. Francie Calfo, executive vice president for development at ABC Entertainment, commented on the show's conception: "I think there was a need for this kind of show on our air, specifically a medical show. And Shonda found a twist on it that made it perfect for where we're at right now. Medical shows are hard, and it was hard trying to figure out where ours could be different. But where everybody else is speeding up their medical shows, she found a way to slow it down, so you get to know the characters. There's definitely a strong female appeal to it". Rhimes explained that she had found the idea of a show about smart women competing against one another an interesting one. Casting Nine actors had star billing in the show's first season. Series creator Shonda Rhimes wanted a diverse cast, and so created characters without pre-specified races. Determined not to have a show in which "all the extras are white, except the lone janitor", she has created what The New York Times has called "one of the most colorful backgrounds in television." Rhimes used a "blind-casting" technique, which resulted in several roles going to actors of different