As I recall, that is only for trade matching purposes, but once the trade is completed, then you can waive the player and only the guaranteed portion of the deal becomes dead money. So in this case, yes, you'd have to find a team that can accomodate Grahams ENTIRE salary (12.65M total: 2.85M guaranteed + 9.8M nonguaranteed) but then you waive him / buy him out and only the 2,85M guaranteed become dead money (see Gallinari, Lamar Stevens, even Graham himself if waived). I don't see that as a big problem that would restrict the options the Spurs have.
You're basically asking a team to take one more year of salary for picks, For reference, Dallas took Richaun Holmes from Sacramento in exchange for the 25th pick (Olivier-Maxence Prosper), it was slightly more salary (about 13M annually) but for TWO seasons, and if you take into consideration the projected raise of the cap, Collins salary in 2 years will roughly be equivalent to that amount 2 years ago. And in the scenario I laid out the third team would only be asked to take on ONE extra year. So I'd think if a late first was enough to rid you of 2 years of such a contract, then a few 2nds could be enough to get a team to add one more year of (roughly) similar salary. There are always rebuilding teams. And in any case, I'd NEVER put a lottery pick on the table to rid yourself of a mid salary, short term deal like Collins. Seems like a gross mismanagement of assets.
Yeah, this one I'd give to you. I didn't realize Brogdon's cap hold was THAT large. Definitely lowers the price I'd be willing to pay if there are viable free agents for next offseason (Donovan Mitc , Lauri Markkanen, Derrick White, etc) so that you can safely renounce him without regret if necessary.