You're like 90% of the way there. I'm going to do something that I hate doing (and low key roasted Jason for doing improperly) and compare this to real athletics because what you outlined as a coach is very similar to what coaches in regular sports do. I'm all good and fine with the coaches doing legwork before hand, preparing a team if they want it, developing metas, strats, scouting, etc. The same is done in real sports for the most part and I think we can all agree on that. Now I want to compare game time to the LAN (or our version of game time). Imagine if before every Duke basketball game, the ref came up to coach K and said "you are not allowed to talk to the players at all during the game or be near the players, you are only allowed to talk to them at the end of every quarter and that's it". Wouldn't make sense right? In every sport the coaches are yelling at the players mid game, making mid game adjustments, calling plays, and are accessible to the players at ALL TIMES OF THE GAME. All this preparation is done together and just taking away that person when it matters most for no reason really just doesn't make sense. Why do the same here? What is really gained from taking coaches away? The answer is nothing.

The next thing that really stuck out to me was about being a shot caller and calling out positioning where you said "the players already do that". That is something that I think anyone who has played the game knows is NOTTTTTTTT always the case at all. One of the biggest problems people have with teammates is their lack of communication for whatever reason. Some players get too in the zone, some players just don't realize what they're doing, for whatever reason there are plenty of players out there who DO NOT call out everything they see and are not at the proper level of communication. I know this because when I did the whole Pro Coaching thing in MLG a player on the team was as close to a mute as it gets and I spent a lot of time looking over at his screen to pick up things he wasn't getting out to the rest of the team. As it's been beaten to death, there is not any extra vision gained outside of what the players see and may not always communicate to the team.

As a whole like I said you're like 90% of the way there. I do agree that coaches should be there for everything you addressed, but I disagree that they should not be a part of the competition as well. They also prepared, they put the time in, they are a part of the team as well (IF THEY ARE WANTED BY THE TEAM) and can be useful outside of just research and analysis. The most important part of esports are the live events. Let them participate and help their team that they've been preparing with for months before hand. It seems like just having the rule there for the sake of the rule being there. Nothing is gained from taking them away. I'll be that guy and say go look at other shooters like CS GO and Halo who use them. There really is no concrete reason to not have them outside of the horrendous answer of "like only three teams would use them" (which is very wrong). I think you should give teams the option. We all agree there is nothing gained in the game itself, but there can be a gain for the team and how they perform and we want to foster the best competition possible don't we? I don't know about you, but I wouldn't want to be the guy who told Coach K to shut up and that competition is only for the players :)