The Cowboys could have hired Norv this year, for the role he's best suited for, offensive coordinator. And he would have done for Dak and the Cowboys offense what he's doing for Newton and the Panthers. But he might have been a threat to Garrett, so we can't have that. Instead, we get further invested in Lienahn and end up with this.
But I don't see him as any legit option for Dallas. Jones can't sell Garrett staying, and he can't sell the fanbase on a multi-time failed head coach in Turner either.