The play of Tatum, Doncic, Brown and Alexander is changing very rapidly, although some other players on the list are still clearly getting better, including Antetokounmpo (yikes!).
It seems a bit of a stretch to put Tatum ahead of Doncic and Jokic, but I'm also not totally sure what is going on with Tatum yet. Perhaps he is becoming a 30+ ppg scorer as we are watching. Perhaps he's just having a hot streak and will settle soon.
I'm still not completely sure Doncic still wouldn't be better. Is his passing advantage worth more than Tatum's defense? I'm just not sure Tatum makes anyone around him any better, and you need that to be an MVP level guy. He's fortunate that he's playing with three other guys that don't need his help to score in bunches.
Jokic is also a weird case, and hard to judge, but ultimately, he's got Denver roughly where the C's are but with less talent.