Quite frankly club teams can't field players at present. Young lads 18-22 have no interest in spending their summers here if they can go on J1's. People can only take holidays at work when they are told these days. Music festivals at weekend are all on in the summer. Throw in stags and weddings and try being a club manager in the summer!
Playing league matches midweek in the summer and scrapping playing them at weekends in the summer would really work in my view.