The "grass is greener on the other side" mentality is strong here...
Sullinger's floor is Davis' ceiling... An overweight Sullinger coming off of major back surgery and playing out of position outproduced Davis in his best seasons, but the C's should take minutes away from him and Olynyk?
Davis was the centerpiece to the Rudy Gay trade, but he couldn't earn minutes on a thin Grizzlies front court [Red Flag]. Jon Leuer, as a rookie, leapfrogged him on the Grizzlies depth chart [Red Flag]. The offer he signed says he's either damaged goods, he really wanted to go to the Lakers, or both.
Unless a player is better and has more potential than the players on the roster, they shouldn't even be considered; give the minutes to Sullinger and Olynyk (as the starting/backup 4s), Zeller and Faverani (as the starting/backup 5s), Smart (as a backup 1-2), Young (as a backup 2-3), etc. for their continued development.