my concept is a dad/coach because really at some level, every dad who has a son or daughter in sports is a 'coach' on the field and off. its a simple line design, and i think it portrays the 'honesty' that you're after.
let me know if i can make any improvements to this for you.
Entry #6 - I like the simplicity and I like the mark leading the name - my immediate reaction was that I am not a coach - but your insight has merit. I often wear I hat so I do like that. Perhaps we lose the whistle. Can you explore with more than one color. Thanks.