[alienfromalphaC]

> the absolute LAST thing I will be wanting is some muscled-headed ex-jock shouting insults at me.

With guys like that, it's not their attitude, it's about what they actually know. A lot of athletes are spectacular because they have phenomenal coaches. Unfortunately, ability to teach and coach is not transitive meaning this sort of person might not be an ideal trainer. For examples of this take a look at some the coaches from Soviet Union who produced some of the legendary Olympians. Ancient, frail coach who could barely stand on their feet wasn't exactly a rare sight. This surely wouldn't work in the US where image counts for a lot. It's not a jab at either country, just my observation.