I am somewhat resigned to Greg Monroe, but I think he could be good here.
I am intrigued by David West, though I don't know if we can afford both he and Monroe. This team needs a leader.
I think we need a sort of 3 and D guy who can play SG or SG/SF. DeMarre Carroll and Danny Green are two guys to look at there.
We can basically afford to sign 2 guys out of the Greg Monroe, DeMarre Carroll, Danny Green, David West group. Then we can start adding exception guys and minimum guys.
I don't know who the other realistic options are. I think we're set at PG now between Grant, Galloway, Calderon. We have that Melo character. I think KP would be best served coming off the bench and we need two starting quality guys in the front court next to Melo, at least for now. KP may be able to start next season (meaning 16-17), but I don't think he's ready to start in October. There have been 9 (nine total) 19 yr olds to come into the NBA and play over 30 minutes per game in the past 20yrs. Can't expect too much from KP too early.
So I think we need two front court starters next to Melo and maybe a 3 and D SG. Though I think we might be able to go with who we have on that front between Grant and Gallo both being able to play the PG or SG and also Thanasis and maybe Ledo and maybe Shved and maybe Early comes into his own a little more at backup 3 this year.
Anyhow, I'd roll with:
Grant / Calderon / Shved
Galloway / Thanasis
Melo / Early
David West / Kristaps Porzingis / Amundson
Greg Monroe / Cole
(no that team probably won't win 50 games, but if you're expecting to win 33 more games than last season, your name must be Melo)