If the coaches are going to be ejected then so should anyone chewing in the gym. Do you think that the only people chewing are the coaches? Don't forget about the refs, table workers, janitors, security and so on. I HAVE SEEN ALL OF THESE INDIVIDUALS USING AT TOURNAMENTS. I HAVE BUMMED DIPPS AND ALSO LET OTHERS BUMM DIPS. I chew. BUT, everytime before heading to the mat I spit it out. (gets really expensive, but thats my choice) The refs don't, the table workers dont and the security officers don't. With the shortages of refs this year if you enforce this rule with all and by the letter of the law soem tournaments will go on till midnight. So as some have said, CHOOSE your battles wisely. I am NOT condoning it in any way, just saying you may be opening a big can of worms.
"Champions rise during the week not the weekend" Jason Wood