Eric, there are simply WAY too many matches going on for the coach to be with anyone. The coaches try to go to a match when one of the club players are in a match, but you have to understand the venue is 2 or 3 long rows of 12 tables with no barriers and hundreds of other club players cheering their players. The tables ALWAYS have matches, so coach cannot be in 5 places at once, so they will maybe be at your match for one game.
Another thing that is interesting... In USATT rules and also ITTF rules... there is ZERO coaching allowed between points, ZERO. That will get you kicked out of the venue. In Korean amature TT, coach (or other players) will tell you advice between points, and sometimes during the point! That is a little strange to see and become accustomed to, but after a while, it makes sense. None of the amatures, no matter if they would be top 5 in USA will ever make it to even a semi-pro league. Everyone is essentially playing for fun, in their special way. Shouting instructions for the player adds to the noise, cheering and fun factor.
Korean amature tourneys are such a BLAST, so much action and and when you are not in a match, if you support your club players by cheering vs the other supporters, it becomes a match all by itself. whenever I am eliminated and therefore very pissed off, my mission becomes team supporter. If I show up on the scene of a tight match with one of our club players in a match where the enemy has 12 LOUD women supporters and I by myself show up, the other team just suddenly lost the battle of loud support. I have special cheers unique to me that the entire city has already copied and will use years after I leave, but NO ONE will cheer as loud. That is one of the fun aspects. Being loud is being Korean in these circumstances. In the Webster's dictionary, the definition of loud should include a picture of a dozen Over 40 women grouped together cheering for something.