Impossible!!!I guess it is easy to bag on teachers and coaches for not helping kids learn much. But thinking back on my K-12 and college education, the teachers and coaches were just like other professions I encountered later in life....a few brilliant, some very good and the rest average or marginal. You know, like your standard bell curve. I remember some teachers/professors really helped me learn the material well and were inspirational or at least motivational. The rest of them blend into the murky ether of my memory. Not that they were not hardworking, passionate and earnest about their work, they just didn't have "it" like the really good ones did. It is unrealistic to expect everyone in every profession to be top notch.
Each teacher you ever had was evil and did not help you and the ones you don't really remember were even worse.