Roles and players I would target, assuming none of these needs are address first in trade;
1. Rotational Forward that can contribute both offensively and defensively, as a primary bench player or possible 5th starter. SF or PF could be used, so whichever spot brings the best talent. Likely at full MLE.
Danilo Gallinari, Jae Crowder, Dario Saric, Paul Millsap, JaMychal Green
2. Big Wing that can defend as in the 2019 Aminu/Harkless role unless that is address in target 1. Possibly use the BAE or vet minimum.
Maurice Harkless, Solomon Hill, Torrey Craig, Wes Matthews (vet minimum), Noah Vonleh (vet minimum)
3. PG that can fill in as a backup, injury, or Simons role, but not so good they are entitled to role or touches. Likely vet minimum.
Austin River, Shabazz Napier, Michael Carter Williams, Evan Turner
4. Center to replace Whiteside and provide injury insurance for vet minimum.
DeMarcus Cousins, Nerlens Noel, John Henson, Bismack Biyombo, Javale McGee, Skal Labissiere, (unlikely, but keep Hassan Whiteside if agrees to much smaller ~$5million salary)