I’m gonna say it: JT is a better defender than Brown.
Sure Jaylen LOOKS the part. And has flashes where he really locks down when he’s on ball, ala Avery Bradley. But JT is a better help defender, is more active in passing lanes, alters more shots due to his length, and at times, is a better on ball defender.
We’re really fortunate this guy is in green
I disagree strongly and agree strongly with different parts of this.
I think Tatum is probably a better help defender, but I kind of think most the time he is below average on ball. I see him get dusted too much off the dribble or bodied too often down low because he needs to add strength. Even the shots he blocked last game were all because the guy easily got around him and he was lucky enough that the guy pulled up short of the rim allowing him to recovery. There's a reason Jaylen is more often on the better offensive players, its because he's better at moving his feet against quicker guys. I think Tatum is better at playing passing lanes for sure, but I see Jaylen make more on ball steals than Tatum does. I think Jaylens agility/strength make him more versatile.
All that said what Tatum does he does very well, and he's better defensively right now than I thought he would be when we drafted him.
Key here is your comment that Brown is often put on the better offensive player as well as the larger player because in starting situations its Brown that is usually guarding the 4s. Tatum just isn't physical enough for most 4s while Brown clearly is.
Also, Brad has Tatum usually playing a bunch of minutes every game being the main cog against the opposition's bench crew. So again, is playing a lot of minutes against less talented individuals.
That said, Tatum's defense is really good and getting better every month. Because of his length and playing the passing lanes more than Brown, Tatum is probably a better team defender while if a star has the ball and is looking to do something, you probably want Brown in front of that guy before Tatum.
Picking at straws here. They both rule and I am ecstatic to have two top notch defenders who are a bit different and who excel in different ways. It makes the team so much more dangerous.