The idea behind the garbage truck is a personal story. When I was 5 I wanted to be a garbage man because I thought it was the most helpful job there was. Taking away peoples trash, the things they didn't want anymore. I've been a coach and consultant for over 15 years now and the most useful advice I give is how to throw away what doesn't work and keep the things that do. Hence my tagline: Recycle your mind.
From an illustration standpoint. It needs to look professional. I DON'T want any totally cartoonish garbage trucks with a windshield eyes and smiles. However, the logo can be fun, because I like to be fun. So I'm very curious to see which way you go with this.
I think the truck must be green (i.e. recycling truck), and I also think you need to see the truck from a 3/4 angle or from the side, otherwise it just looks like any other truck.
I included 2 head shots of me with glasses and tie. If there was a way to do a sketch version of me or outline of me in the logo that might be cool too. I don't know how busy it would be with the truck, the words "Coach James Cooper" and a tagline of "Recycle Your Mind" AND possibly http://www.coachjamescooper.com in small black print underneath the logo. It would be nice to see if it would be possible to incorporate an animated/sketched version of me and the truck though. I leave it to your creativity.
It just needs to still be professional (I am a high-performance coach and consultant), and you also need to identify that, yes, that is a garbage truck (the one with the scoop in the back, not just any truck).
Have fun. Message me with any clarification. Good luck everyone!