In the Season 9 episode "Livin' the Dream," Andy Bernard resigns from Dunder Mifflin to pursue a career in entertainment, notably repeating that he has "a lot of work to do" . Following his resignation, he attempts to audition for a singing competition, while Dwight Schrute is finally named the permanent Regional Manager . Additionally, Jim Halpert attempts to connect with Pete Miller by discussing Phillies baseball .
You can find more details, including a video of the scene, on Reddit . [S9E21] Livin' the Dream