I think in some cases the coaches honestly don' t have the right stats to begin with. I know in basketball our coach has one of the JV girls or a parent keep the stats. The JV girls can be half-assed and the parent has his own agenda -- his daughter's stats are always okay (or better than okay) but everyone else's are always messed up in a negative way. And I don't think he's deliberately doing that so much as not paying as much attention to anyone else as he does to his daughter.
Even in college they get some student to keep the stats and those too get messed up from time to time, which since they are kept electronically means they will never, ever, be righted.
IMO, a coach can't run the game and keep stats because that's too many balls in the air, but someone reliable SHOULD keep stats.
