You are apparently just getting beaten by coaches with more experience. I agree this process is frustrating. This is more of a problem in the 2-a-day worlds, that gear themselves toward people who want to move up quickly - you'll see the same issue at each level in those worlds, you're more likely to be competing with applicants for the prime jobs at each level than you are in 1-a-day worlds.
Hang in there. You'll get one. Or hang out in D3 for a couple more seasons, get another Sweet 16 or 2, and you can go straight to low D1.