It's been so obvious to me, and Fish just seems too much of a "respect the vets" guy to do it.
The best lineup is where we use KP at 5, and have Melo with 3 athletic players out there with them.
So lineups like -
Porzingis/Quinn/Melo/Afflalo/Galloway
Porzingis/Melo/Afflalo/Galloway/Grant
Porzingis/Williams/Melo/Afflalo/Galloway or Grant
Porzingis/Melo/Thomas/Afflalo/Galloway or Grant
^
Those lineups should take about 36 minutes of our PT. If KP or Galloway are tired, then you use Lopez/Calderon more.
The future is KP/Melo/Galloway/Grant, and you have to give them a lot of experience to keep developing and improving.
RLO and Calderon should serve as mentors to the younger players and be used primarily as backups. Give Lopez, Seraphin's role, give Calderon's Grant's role thus far in the season. Increase minutes for Gallo at 2, and KP at 5. Give Grant some freedom like in the last 2 games. But since the Knicks made a big investment in RLO and Calderon, financially, I feel Fish feels obligated to stick with them.