If my math is correct, we could waive+stretch Korver, trade Crowder to somebody for nothing, and have enough room to keep Favors and sign Russell. Based on DL's undying love for DedEx, I think that's more likely
Here's the calculation:
1 Allen, Grayson $2,429,400.00
2 Bradley, Tony $1,962,360.00
3 Crowder, Jae $7,815,533.00
4 Exum, Dante $9,600,000.00
5 Favors, Derrick $17,650,000.00
6 Gobert, Rudy $25,008,427.00
7 Ingles, Joe $11,954,546.00
8 Korver, Kyle $1,146,666.67
9 Mitchell, Donovan $3,635,760.00
10 Neto, Raul $2,150,000.00
11 Niang, Georges $1,645,357.00
12 O'Neale, Royce $1,618,520.00
13 #23 $2,287,080.00
14 vet min cap hold $897,158.00
Total $89,800,807.67
This is with stretched Korver and accounting for our #23 pick and a min caphold to fill the roster of about 900K.
The projected salary cap is around 109M
So we will have about 19M of capspace if I'm not mistaken somehow. If you can get pure capspace for Exum, you will be at about 29M give or take... If you trade Crowder for capspace you will free up about 27M give or take. Russell's max starts at about 27.25M...