Parks and Rec will not be the same with Rashida Jones and Rob Lowe. Rob Lowe provided for a lot of the comic relief associated with the heavy subject matter of the show, and Ann provided some one for Leslie to relate to and confide in. Without Ann especially, Leslie will become cold and aloof.
Parks and Recreation will not the same without Ann and Chris. Leslie Knope is obsessed with her best friend Ann. It will not be the same if she cannot run everything by Ann, buy Ann presents, and obsess over how beautiful Ann is in the show. Chris is so funny with his obsessive health habits. The two characters will be missed.