[whiskyant]

Dota 2 allows for a real time coach to join your team during a match at any time, it's built into the game. They have full vision/information of what your team has.

However, "Coaching is available in private lobbies, casual matchmaking, and Co-op bot matchmaking, but not Ranked matchmaking, Team matchmaking, or Tournament lobbies."

[berkozer]

Yes, Valve has a similar vision for CS:GO as well. We don't provide any coaching services for tournament or professional events.