She also continued her position from the first 2 seasons as one of the most prominent members of the writing staff. Betsy Beers, Mark Gordon and Rob Corn also returned as executive producers, along with Mark Wilding, Peter Horton and Krista Vernoff, who have been in this position since the inception of the series.
The passage describes a group of individuals who have been involved with the series since its inception, continuing their involvement in various capacities. Betsy Beers remains a prominent writer for the first two seasons.