I've been over this a few times already. To get Kawhi to Boston WITHOUT Hayward, Kyrie or Horford, they would have send:
Morris - key, cheap role playing big for Boston
Rozier - up and coming PG
Brown - up and coming wing
Yabusele
Ojeleye
Nader
http://www.espn.com/nba/tradeMachine?tradeId=ybocyjyv
And probably the Sacramento 2019 1st and/or the Memphis 2019 1st
I get that you found a way to actually match salaries but I doubt SA wants that junk drawer of players.
Rozier/Brown and picks, sure. The rest? Nah.