Thoughts on the game after watching it:
Tatum had some pretty gaudy passing numbers (7 assists), but I don't think it was a great passing game by him. It was one of his best displays this season, but he still missed the roll man quite a bit in the PnR (he could've thrown the Wannamaker to Williams pass a few times in his PnRs) and generally was a bit slow even when he made the correct reads, although he had some high quality passes here and there (eg. the interior dish to Theis in the second quarter). His ceiling is more Paul Pierce than Paul George/Kawhi Leonard barring a leap later on (which is unlikely imo), which is worrying if we want to make him our franchise player (All-NBA players don't lead you to titles as the best player on the team). His defence is underrated though, he provides good defensive value with his help defence, ability to get into passing lanes and defensive rebounding. Tatum's scoring also grew stronger as the game went on, he was more meticulous in his attacks and didn't force a drive/midrange pullup when it wasn't there, which resulted in a lot more cleaner looks for him that he nailed.
Wannamaker is a really solid point guard. He's efficient, makes the right reads at the right time and doesn't force the issue. Really good pickup for the minimum.
Jaylen had a slow start this game with some reads that weren't all that good, and he was forcing his offence quite a bit. He settled into the game as he got more of the ball starting from the second quarter and was more methodical with his approach, which paid dividends as he started hitting open shots within the flow of the offence and started making better reads in his attacks (had a nice interior pass to Kanter in the third that got him 2 FTs). His defence was excellent and it led to some transition opportunities for him and his teammates, and he guarded his assignments pretty well with his combination of length, speed and strength. My only gripe was that he didn't create a ton of offence like he did against San Antonio (he scored off of his teammates' creation a lot this game, and didn't really create easy looks for his teammates), but it was a pretty good game from him.