Long term, they need to go get a legit starting NBA small forward.
Short term, it's going to be tough. I think Casey is going to have play Derozan and Lowry 40+ mins a night for this team to win many games. If you can roll with Calderon in some sort of small ball lineup for awhile each night you can give ~Calderon 25 minutes. Even running those guys into the ground leaves ~40 mins on the perimeter where you need to find productivity. Honestly, I think mixing and matching and experimenting is going to be the theme all year cause none of the candidates; Fields, Anderson, McGuire, Ross, Kleiza; is going to give you a good 25+ mins a night on a consistent basis.