I don't see him implying that it's the coaches at all. Just the opposite. Above all, coaches are responsible for what's being run and he says "everybody is running the same s***." If the Raptors' bench is much "sharper" in running their stuff than the Kings are in running theirs, that's on the players.
But losses like last night's are why I'm really not feeling the Kings-just-aren't-talented argument. Sure, they're not talented enough to win a championship. They're not talented enough to overcome whatever ails them. But that's not the same as saying that talent is the fundamental issues.
Losing by 23 to a much-reduced Raptors team was not about talent. Nor was losing to the Sixers' JV. Losses to the Rockets, Mavs (yes, even w/Luka), Spurs, Thunder, and a 7-player Hornets team - at least HALF the Kings' losses have been to teams that put decidedly less talented players on the floor on those particular game nights.