If the goal is to create max cap space, renouncing Kelly is not an option (unless we stash both Zizic and Yabu).
For the sake of discussion, let's assume we do the following :
1. trade Rozier - Jackson for draft pick(s)/salary relief
2. renounce Kelly - Amir - Jerebko - Green - Young
3. decline team option on Mickey
4. stash Yabu overseas/in the D-League
We will still have :
Horford - $27,734,405
Bradley - $8,808,989
Crowder - $6,796,117
Thomas - $6,261,394
Brown - $4,956,480
Smart - $4,538,019
SUM : $59,095,404 for 6 players
+ cap hold for the #1 pick : $7,026,240
+ cap hold for Zizic (#23) : $1,645,200
SUM : $67,766,844 for 8 players
Teams are assessed a $815,615 roster charge for each open spot below 12 players.
$815,615 x 4 = $3,262,460
$67,766,844 + $3,262,460 = $71,029,304 for 12 players
The latest salary cap projection has the cap at $101,000,000.
$101,000,000 - $71,029,304 = $29,970,696 available in cap space
The max contract for 7-year vets starts at 30% of the cap.
101,000,000 x 30% = $30,300,000
29,970,696 - 30,300,000 = -329,304
That is $329,304 short of Hayward's max.
What are you basing the cap hold for the #1 pick on?
$5,855,200 rookie scale x 120% = $7,026,240 cap hold
I don't know if the $5.8 million base salary is accurate or not.
Jvalin, that math actually works if you add one more consideration: If they sign Hayward, you can subtract $815,615 because one less roster spot would be open (3 instead of 4). That makes up for the $329,304 shortfall, right?
EDIT: Roy H pointed out the same thing:
As soon as we sign Hayward, the cap charge for his roster slot disappears. Add another $815k, meaning that we're fine.