I agree with your list. Many coaches use excuses instead of working to overcome them.
However, sometimes you ARE limited to a great extent by the personnel you have. I recently coached in a program with few athletes, an A.D. that was an arrogrant S.O.B. who didn't even TRY to help the coaches and parents who would just as soon stab you in the back as look at you! I am a very personable guy who loves to promote my program and I'll put my work ethic up against anyone...but those excuses you talked about are sometimes LEGIT. They key, I think, is to get to know the coach to find out what is really happening...it doesn't take too long to find out which guys are crying wolf and which ones truly are facing uphill battles they can't control.