In a move that may shake up the lead drama actress Emmy field this year, for the first time since the launch of Mad Men, co-stars Elisabeth Moss and January Jones will go head to head at the Emmys by competing in the same category, according to TVLine. For the first two seasons of the AMC drama, Moss was submitted as lead actress, Jones as supporting, with the two switching for Season 3. Now Michael Ausiello reports that Moss, whose character Peggy was very prominent in Season 4, and Jones are  both being submitted for lead actress, which could jeopardize their chances to both land nominations like they did last year. The two also entered the most recent Golden Globes race in the same lead actress category, with only one, Moss, getting a nom.