Tatum is a little more athletic and has more upside, but he's very similar to TJ Warren on the Sun's.
Both 6'7" shoes off with some a 6'10" wingspan for both of them.
Both dynamic, tall, skilled, mid range scorers and Ball handlers like Evan Turner.
They are not really athletically gifted either, but they hold there own.
BTW. Warren is coming into his own thus year avg over 15 ppg, here he goes for 30 points.
https://youtu.be/J6SntQLkhSk