The headline is somewhat confusing. Did Carol Burnett write the comedy skits and/or is she acting in them in a show being produced by Amy?. A few verbs thrown in here and there would have cleared things up. This may be shorthand, or ‘inside information’ from Hollywood, aimed at those already aware of what both women do , and their places in the entertainment world.
Burnett and Poehler are producing and Burnett is also starring in the show.