The Spurs starting five is going to have an average age of like 23. They're not winning a ton of games. I don't think that means they're untalented. Dejounte Murray and Derrick White are only approaching their max development over the next 2 years and both are valid candidates for second banana on a championship team. Zach Collins is not without talent. His question is health and recovery from injury, but the talent is there. Keldon has talent on both ends. He certainly did not look outclassed on the Olympic team. Primo, Samanic, and Vassell are all still just projections more than substance but each can be called talented enough to be a contributor for a playoff team *if* they continue to develop. Lonnie is your store-brand Westbrook at this point but if he turns out to be a more athletic Avery Bradley that's still a guy that can be part of winning basketball. (FWIW, I'm surprised by how astute the Bradley comparison appears to be based on stats at the same age.)
The doom and gloom interpretation is that the Spurs have exactly zero star players. The silver linings interpretation is that this roster is crazy young, the org has a reputation for developing players to maximize their potential, and they have zero bad contracts on the books. When a star comes available they will have some assets and cap space. It's just, well, this isn't the year.
On the future cap front, 2022 the Spurs projected to have $48M in space, roughly tied for 4th with Detroit in terms of space available. Only Orlando is realistically going to have more space since New Orleans and Memphis are both going to have to spend at least a third of that projected space to keep Ja and Zion around on max extensions. Memphis will also have to pay JJJ.
The Spurs are probably in good shape for 2025 is what I'm saying.