Again - I dont care how other franchises works. Some of them cant crack play off with much better roster, New York Louslanders are playing regularly there.
And they still paying 80+ mil for their employees. This players can play for other organisations if they want... for example beard in december. Ask for a trade or determinate their deals. Or live with it if they cant for one or other reasons because its just a beard or hair. There are tonns of rules and tonns of attributes that pro athletes are wearing because their teams asking them to wear it regularly or for some special days. Beard and hair isnt something special.
Hockey is a professional sport of high achievements. McDavid and Dreisaitl are great hockey players, but for some reason they haven't won their Stanley Cup yet. And it's not about the beard or the hair, but other things being importnat, any little things are solved. Including the time and mood level before the game. And so far, if we evaluate the level of the roster and the results, Islanders consistently do it better than other teams. Perhaps if Lou had been in a really talented team, he would have been able to trade the right people and set the rules that would help win the cup. Oh, wait-that's how it was. The Devils won their three Cups, frankly speaking, having not the best lineups for this. And in the subsequent period, Lou's team went to the playoffs for a very long time, not always operating with a sufficiently good squad for this.
Not saying Lou is overall great - Im not a fan of his today roster management. But his discipline rules are quite easy enough to live with it. And mostly disciple helped people EVER. So Im okay with discipline. Between two talented teams - well trained, well talented, there will be one team only that will win. Discipline will help with it.