As Chinook correctly pointed out, putting young players in unfavorable situations, watching them not be up for it and then quickly giving up on them because of this, should not be a reason to get rid. At the very least because it has destroyed whatever value they might have had. For that reason, I wouldn't shop any of the young guys unless they're a part of an advantageous larger trade.
See if you can get anything for the vets, which is unlikely to be of any significance - a couple more 2nds or not , who cares.
I'd shop some of the picks the Spurs have - the Toronto pick, the Chicago - and see if it can get them someone good for next year and on. For example, if Toronto don't expect to keep Anunoby their own 1st back might be better value than other offers they'd get - 2 or 3 picks in the 20s aren't more valuable than a single one in the 8-12 range. They probably won't do it out of spite because they'd look really bad, but who knows, they've seen so much talent go for nothing.