[dsmoker]

While I agree with just about everything that's been posted above, I want to point out that the yelling issue isn't restricted to adult mentor coaches. I've seen student coaches yelling at other students and even at adult mentor coaches, which is equally disrespectful. The problem isn't one of mentors coaching vs. students coaching. I think it's a matter of having the right personality type in that position, someone who's not just a good strategist, but can handle the stress that necessarily comes from being behind the glass in a manner that doesn't manifest itself negatively.