I agree with a lot of what your saying, but, in this case, these 2 girls (coaches kids) are very good players. They contribute and help this team tremendously. So as a broad statement, you have a point, I just don’t think it applies to this team.
They are good but certainly not top and on any given day the girls that don’t play are better. Point is if their parents weren’t coaches I highly doubt they never leave the field as is the case now.