It seems they’ve found one:
Michael Wallace of Grizzlies.com:
Memphis will be eligible to add a 16th player as long as it has four players who’ve missed three straight games and will continue to miss time. Brandan Wright, Chandler Parsons and James Ennis already qualify. Conley and Vince Carter would qualify by not playing tomorrow.
Andrew Harrison has played well since Conley went down, but over a larger sample, the team has struggled with him or Wade Baldwin running the point. Douglas – who has played for the Knicks, Rockets, Kings, Warriors, Heat and Pelicans – is fine. At this point, the Grizzlies will probably take fine and drop Baldwin from the regular rotation.
Other Memphis players could get healthy before Conley returns and put the team in a roster crunch once it no longer qualifies for hardship. Drop a better player or run short on point guards? But that’s a future problem. Adding Douglas will immediately strengthen the Grizzlies – once they can officially sign him.