Who's going to be able to shoot threes and spread the floor with Smart, Jackson, and Brown?
jackson is currently shooting 37.8% from 3 point land for the season.
smart has shot around 33% to 35% since december 23rd.
brown has shot 35.3 over the past month.
so, the answer to your question may be ... all of them!

while these are small sample sizes, nonetheless they at least give room for hope for all three.