I mean, Poeltl is being paid less than the MLE, so I don't consider that a good alternative. I also don't believe he's irreplaceable. I do believe, though, that since you are going to probably use that money on a center anyway, you may as well keep the one you have rather than use in on like Plumlee. I'd've felt completely differently had the Spurs drafted Jalen Smith instead of Vassell or even if they'd've found a way to pick Oturu and still re-upped Eubanks.
With all of the guards on the team, there's no expectation that you're going to spend eight figures for a bench player. They shouldn't be paying Murray $16 Million if they're paying White $20 Million and are also looking to pay Walker or Johnson coming up. It's not a sustainable strategy to do that, whereas Poeltl will probably be the starting center for the final two seasons and then will be gone by the time Johnson's new contract would kick in.
I don't think SA has ever been that disciplined. They were just way better at holding onto depth for cheap contracts and had stars who constantly took less to stay. They've traded multiple assets over the years to get rid of bad money, and before we saw this string of dead money on the books, they were doing it with guys like McDyess. As I've mentioned before, they gave Splitter $36M/4 against a $59-Million cap. Sure centers aren't as valuable, but adjusting for inflation means the team reflects that and more. I also don't think Poeltl will be in the top-15 highest-paid centers this upcoming season, maybe not even to 20. I'm not going to start saying I love the deal or even that I was okay with it. But I do understand it, and I think it makes more sense to sign Poeltl and then look for to develop a replacement for 2023 than it would sign all three of the young guards if they don't all break out.