Why the nets do this:

They get young players who haven't been developed to their full potential. In an organization that is currently focusing on the development of its young players, JHS, Nnaji, and MPJ would be part of that culture and acquire their sought-after FR picks.

Rotation : Pg - Schroder, Simmons, Johnson,
Sg- Cam, Watson, Williams, JHS
SF- MPJ, Wilson, Whitehead PF - Clowney, Naji , Watford C - Clax, Sharpe, wood ~

Why the Lakers do this:

They get their PF that they are looking for essentially a first-round pick as they are not playing the guys that they are sending out.

PG - Reaves, Russell Sg - Knecht, Milton SF - DFS, reddish PF - Lebron,Rui
C - Davis, Hayes ~ Why the nuggets Do this:

They get much-needed depth and veteran experience and also get off the MPJ contract and acquire a 90% ish version of himself in Cam while also getting Bogdanovic for more depth at the forward position

PG- Murray, Westbrook sg - Braun, Strawther Sf - Johnson, Bogdanovic PF - Watson, Tyson C - Jokic, Jordan