Today's internal promotions in the scouting department seem to reinforce that. If an outside GM was brought in, they would not have made these moves.
Frank Wren and Eddie Bane were moved out of the way, and probably are being given a minor share of the blame to supplement Dombrowski's for the state of the MiLB pipeline going dry, especially in pitching. The two edge sword is still the thrill of a record season and WS win in 2018 and the flop in 2019.
Keep in mind there will be only one big winner in 2019, so one of the Yankees, Astros, Dodgers who did play well in 2019 is going to be very disappointed to lose their last game of the season. A's , Guardians, Braves , Cardinals might be happy just being there.