FIX PLAYER FATIGUE!!!

My goodness, NHL players are highly conditioned athletes, don't drain them 8 seconds into a shift!! And also, if you're going to fatigue them so fast you have to realize that NHL players are good to go again at full energy after about a minute on the bench. It's completely unrealistic for all 4 lines to be 75% gassed at the same time!!! It's impossible for NHL players to come off the ice, have three full line changes that created three other lines drop to 25% energy and the 1st line still only be 50% recovered!!! They would be 100% ready after a minute on the bench. Also, it would help if my players actually changed when I called a line change!!! If I'm pinned in my end and call a line change they often bee line for the bench, but if I try when the puck is heading up the ice on offense(when you should be changing) they refuse to go off the ice!!! I literally skate them to the bench, change players and they don't go off!!!!