I believe it depends on what direction we are going in...right now we have no clue what direction we are headed in..
Rebuilding mode I think we let Tyreke, Mario, and Brice Johnson walk next season. Sign Andrew Harrison, he has shown that he is more than a capable NBA player and is versatile and can play PG or SG. I would also think we are look to trade Marc for expiring contracts and cap space. Trade or waive Mac
If we are trying to just improve the team I think we should sign Derrick Rose now, see what he has and if it's something then give him a 2 year deal after next season..he would be cheap and is a low risk, high reward. Re-sign Tyreke Evans, Re-sign Harrison. Trade or waive Mac. hard to tell what we get in the draft and what position we will get now since we are not trying to tank. Let Mario, and Johnson walk.
This roster would give us a extra spot for our draft pick. Then some room to develop.
Conley/ Rose/ Harrison
Gasol/ Davis/ Rabb