You need have people that you know you can trust in this trade. You can't enter it as a garage owner thinking that your staff are just doing enough. They need to be churning out the highest quality possible. That's why I've got 2 guys that worked with my uncle, an apprentice for them and myself to teach, and a fella that I got who has a good reputation.
As for not actually getting round to things, that's just wasting his own money and time. Once you have your papers and he takes you more seriously, trust me on that one, he will, then you should say something. Just suggest stuff. There is telling your gaffer he is wrong, then there is pointing him in the right direction. Just stick it out until you get your papers, learn what you can from him and move on?. You have 1 advantage over me, you will have your qualifications haha. I don't have any apart from an MOT tester certificate!.
McGlone, I think he is maybe doing the college course? That gives the IMI qualification! Won't you get the City and Guilds?
Also, having the edge over other companies is having a massive range in capability. That's the only way.