The umbrella works if the players are capable of getting one timers off at the point and half boards. Flames haven't been able to pull that off. Either get the right personnel on there, or switch up the formation to more of a overload to pressure the PKers.
They need to get shots off quicker. They're making excellent passes that are easily pulling Brossoit out of position where the recipient holds it to get a stronger shot off. He's a bad goalie, just go for the weaker, less accurate quick shot.