Will Arnett is returning to CBS. According to The Hollywood Reporter, CBS has put a workplace comedy from the former star of The Millers into development. CBS vet Tom Hertz will pen the script. The untitled multicam project is described as a workplace ensemble set at a public high school. This brings Arnett back to the CBS fold after the demise of The Millers, which was canceled early in its second season despite getting a full-season pickup from the network. Amy Poehler's ex-husband is repped by WME, Principato Young, and Robert Offer.