I wish you used a Tweet of someone who has played a sport in their lifetime and hasn't complained for the last 5 years like a whiny child, he is the least likable person on television.
Maurice also basically said nothing that Keefe didn't say before or even the players, they all said that the regular season is to prep for the playoffs.
In sports there's only two real options when you don't have buy in from the players.
1) You fire the coach and hire another to say the same thing in a different tone, turn of phrase.
2) Or you get rid of the players.
We did the first thing, and the second is probably on the menu. At this point, who cares if we get rid of Keefe and then some or all of Marner, Tavares, Rielly, Marner, Nylander, Matthews?