They are human and even if you want to say it, its impossible youre being at 100% all the time, every day at your Job... some day you will be more better than other and its normal.
Exemple your baby cried all night long and you didn't slept pretty well, thats will affect your productivity. Being at 80-85% vs 100% most of the time its when we say at team had bren outwork. We dont talk about a team being at 30-60% but just losing 20% of his energy. Thats making all the difference of the world
Domi i dont know what youre expected, he did it during all his carreer...
Bertuzzi is not a lack of work sorry, but he was looking lost at time on the ice. Its different
Tavares outwork over 99% of NHL player and thats why he had that kind of carreer and why hes the captain. Just few player was working as hard than he did. We can blame jt for a lot of things past years but certainly not for his work ethic.