Sure this season is a loss cause but Pop's refusal to play Tre Jones with Wemby or get a good PG is actually a strategy for the long run.
1) Without a good PG, it would force Wemby to really show the world what he have, talents and skillswise offensively. Yes, it could be ugly and expose Wemby's mistakes and weakness. But knowing Wemby's compe iveness, work ethic and willing to learn at ude, all these mistakes and embarrassment will drive Wemby to train crazy hard in the coming offseason (although the Paris Olympics might delay the training a bit).
Pop want to leave no doubts to Wemby that the NBA is "not easy". Scouts, GMs etc may praise Wemby is the best prospect of all time with GOAT potential but it is for Wemby to really understand that it will not happen automatically unless Wemby really put in real hard work in order to get somewhere. Tbh, there are just too many number 1 picks who have the talents but don't have the work ethics and drive to train hard. Pop just want this season to really drill it into Wemby's bone that he is not adequate and hence Wemby would always keep this fire burning even when he get MVPs in his latter years.
I am sure Wemby by now is already aware that he currently don't have the dribbling skills and handle to attack from the perimeter in the NBA. Take KD as example, KD trained hard after his rookie year and his handle really tightened and it became a unsolvable weapon starting from his sop re year. I remember even Kobe mentioned this in a interview (once KD tightened his handle, Kobe knew it was over. There is nothing stopping KD from driving and he became one of the best pull up shooter)
So if Wemby can start the next step like KD, his "individual" offensive skills would be up a whole notch. Wemby has shown desires to attack from the perimeter and also admitted that he watched a lot of KD's tapes. So becoming like KD is still something possible. But there is still something that can unlock Wemby's offensively even higher.
2) Now that is where a good PG comes in. Beside able to create his own shot by attacking the perimeter with a better handle, now imagine if there is a good PG who can throw him lobs to get easy transition points or at least get fouled and get to the FT line. This lob attack is something that even KD is not privileged to have. Wemby is blessed with the height and the length and the mobility to get transition points and a good PG will truly unlock Wemby's offensive talents. Pop might not want Wemby to be complacent if he can get easy points through a good PG now and results in Wemby not being motivated to train his individual offensive skills. In addition, without a good PG now, it would leave a great territory of untapped potential that Wemby can be much better (i.e. not showing the world what Wemby truly can do). What is important now is that Wemby understand by heart that he can be better individually and don't take wins for granted and be complacent.
Hence, this is why Pop is being patient and playing the long game. Yes, it might look bleak now. But once things finally come together, the Spurs could have 1 of the best turnaround wins season again.