At some point it will become apparent that Brown is our best option. Given that he is disposed to actions with movement, and is less inclined to lock in on taking a shot, we'll be better off. The problem is that in the NBA, it takes reps to be effective in those situations.
Brown is much more explosive and creates separation more easily. The evolution of his midrange game is perfect for end of game situations, because it is virtually impossible to stop someone that quick.
Tatum has the beautiful shot and the footwork and ball handling, but he doesn't have that superior burst, and his most comfortable move is the sidestep three, which isn't high percentage enough for end of game when under intense pressure. He had room and time against Brogdon to get a 15 foot shot instead of a 25 foot shot but he doesn't have go to moves for that yet. He needs better mid range separation moves if he's going to win games at the buzzer for us.