Wizards Starters: Morris, Beal, Kuzma, KP, Turner
Bench: Wright, Davis, Kispert, Avdija, Gafford
This will allow KP to play the 4, where is is better at. KP is fine at the 5 but not for extended minutes on a given night. Turner will be the rim protector and anchor the defense. Behind a smaller backcourt, you have a lot of length from your 3-5 (similar to the Cavaliers). In addition, this gets rookie Johnny Davis into the rotation, and with Barton being there, I don't see that happening.
For the Pacers, they get a veteran in Barton who they will likely move later down the line. More importantly they get Rui Hachimura who has battled with injuries, but has a ton of potential nonetheless. He can start at the 4 for them and hopefully be a part of their rebuild.
Pacers Starters: Haliburton, Duarte, Mathurin, Hachimura, Smith
Bench: McConnell, Nembhard, Nesmith, Brissett, Smith
For the Lakers, they grab 2 shooters and another rim protector to provide depth there so AD can play the 4.
Lakers Starters: Schroder, Hield, Bron, AD, Jones
Bench: Beverley, Reaves, Barton, Theis, Bryant