Thanks for the insight, it all makes perfect sense.
They clearly value Poeltl highly, as they should. With or without Wemba he's a good fit on the roster and wouldn't be easily replaceable. Anything between 4/58 now and 4/70-75 in the summer is good value and a valuable asset. There's not much sense in getting a single mid to late FRP for him as they clearly seem to think they could keep him in the summer and not see him simply walk for nothing. They've surely discussed the extension option and are well aware what he's looking for , both financially and as a basketball situation. Even the 2 picks scenario, say Toronto's 23 and 25 firsts, isn't that great. An 18th and a 22nd pick (or something similar, realistically) would be unlikely to produce a player as influential as he has become.
Wiseman is terrible right now and it's no surprise they're not interested. Kuminga is supposedly a bit of a headcase and lacks the work ethic to reach his ceiling. After all they've been through lately it's understandable they wouldn't be willing to compromise with character. Or it could be just a smokescreen. Moody I've loved since last season's draft, he was my guy for the Spurs pick, but it's not like he's been good so far.
JRich I'd love it if they could get a FRP for him but it would be difficult because a lot of the contenders have traded their picks away already and there aren't that many available FRPs. Certainly less than the pool of players available who'd generally be valued this much. You'd have to convince some team that they should spend their FRP on JRich over Hield or Gordon or Crowder and so on. The market will drive the price down.
McDermott also makes perfect sense - his contract is alright, it's not an albatross and he's the perfect player who could help young guys develop - doesn't need the ball, spreads the floor, good locker room presence. Keldon/Vassell/Sochan/Wesley/Branham can have the ball in their hands and take advantage of the created space to operate. Sure, he doesn't really affect winning overall, but we all understand this isn't the most important thing right now.
I wonder if there's any talk of absorbing bad contracts for value. Such deals would probably come right at the trade deadline but Spurs and Pacers could help some team reduce their tax bill or get rid of an unwanted contract for a pick - Fournier, Shamet, Graham, ... there are possibilities.
I'd also like to see them try to take a flyer on some guys on rookie contracts (that they might have liked during the draft evaluations), who have been in bad situations and might need a change of scenery - the likes of Okoro, Okeke, White, Thybulle, etc. Even if it costs them a future 2nd or two - they have 4 additional SRPs on top of their own.