The urgency is that the Braves are playing like their hair is on fire. They are in FULL desperation mode. Long term, this is a terrible strategy but it's the perfect strategy for making up 7.5 games with about 3+ weeks to play.
I mentioned it in the GDT that Gonzalez used Kimbrel in a situation that most managers (especially Fredi Gonzalez) never use their closers. In the middle of June, in a tie road game in the 9th, your closer waits in the bullpen until your team gets a lead and then he closes the game. Davey Johnson is famous for this "strategy". Kimbrel went in the 9th in a tie game, knowing full well that the last at-bat would be the Mets and another pitcher would have to close the game, assuming the Braves scored.
As it turned out, it almost blew up in their faces because the Mets came close to scoring in the bottom of the 10th against Moylan after the Braves took the lead in the top of the 10th.
The Braves made up 2 games this weekend and they seem to be willing to do anything (ANYTHING!) to win this division. That's the urgency.
Nats started the homestand 5 games up on the Braves
They finished the homestand 5.5 games up on the Braves
They just went 8-3
Lighten up Francis