Good structure backed by strong defense?
The Capitals play a five-man game in all three zones. They check to get the puck back. Their defensemen are typically in position. John Carlson and Matt Niskanen are dangerous when they jump into the play. Brooks Orpik and Karl Alzner serve as safety valves.
The Capitals' consistent structure is why they are rarely chasing the game.
Cup-winning experience?
Part of the reason the Capitals got Williams is because he's a three-time Stanley Cup champion and the only player in NHL history to win seven Game 7s without a loss. The Capitals are 3-6 in Game 7 since 2008.
In addition, Richards won the Stanley Cup twice with Williams and the Los Angeles Kings (2012 and 2014). Orpik won the Cup with the Penguins (2009).
Six years ago, the Capitals went into the playoffs thinking they already were on top of the hockey world. They crashed hard.
This season, they'll finish on top of the hockey world because they're better equipped, more prepared, more experienced and, simply put, the best team in the NHL.