But he doesn't know the player's characteristics. How can he choose which ones to put on the depth chart
He can look at their stats. I've been scouting players for the USA NT, based primarily on their salaries. You look at the stats, and you can tell who can shoot, who can pass, who can rebound.
I would limit the coach to the 20 players who received votes, and he would have to take the top 10, unless some were injured, so he is mainly selecting 2 others from 10 players.
And if the ASG isn't developing interaction among league teams, it isn't really working as far as the game goes.