As is, the Blazers' salaries for 2017-18 is $134,395,849 before re-signing Plums.
Minus Crabbe $18.5M, Turner $17.1M, Leonard $9.9M, and Ezili $7.7M
$81.2M
The CAP is projected to be $102M.
That is enough to make a max offer, but we'd only be able to go over the cap by re-signing Plums to a big enough contract.
Assuming we would sign a star FA with the ~$21M, our roster would look something like:
Dame, CJ, FA, Plums, Mo, Aminu, Davis, Napier, Connaughton, Layman, Quarterman, our draft picks, and vet minimum players.
If we don't sign that star FA, maybe we get lucky and sign someone as good as ET, or sign two or more even lesser players.
The downside is huge. The upside is a big risk.
NO did the right thing.