Lets say Tatum comes back close to what he was before. Going into 26-27 you'd have
Tatum (Top 10 player)
Brown (Top 20 Player)
White (Top 35 player)
Pritchard (Top 100 player)
Hauser (Solid Rotation player)
On top of that they'll have Anfernee Simons expiring to use in a S&T, a 20ish million dollar TPE, probably a pick 26' in the late + 3 other available first to trade at the draft. They have some intriguing young guys who might take a leap.
I don't the doomerism around this team. They have assets, they have ways to get better. They are in no worse a situation from two years ago before they traded for KP and Jrue, They have the ammo to make moves like those again.
Its not a sure thing, it might fail, odds are always against you. But they aren't out of paths forward.