I understand, what you're saying but do you really think a player that's almost 30 is going to listen to a bunch of guards that's in their early 20s.
Garland just turn 21 today and Sexton turned 22 three weeks ago.
It's the coaches job to tell Drummond to stop his bullshit especially when you have two young guards. This is the reason,why the Pistons traded him because he wants to act like he's Embiid or Jokic when he's not. He needs to be told rebound, defend and make your layups nothing more.
With that said,Sexton and Garland needs to tell Drummond to give them the ball but Bickerstaff needs to help them too because he's the one allowing it to happen.