McDavid's four-point rampage overwhelms Penguins

Sidney Crosby skates past Zach Hyman (18) while Hyman celebrates the first of his two goals.EDMONTON, Alberta -- They do not need much, these Oilers.

Take a single step out of position or give them the slightest sliver of an opening, and they are off.

Usually at high speed and with malice aforethought.

"They're an opportunistic group," Mike Sullivan said after the Penguins' 5-2 loss to Edmonton at Rogers Place Wednesday night. "They don't need a lot chances."

The Penguins knew that going into the game and for two periods, played like they not only recognized the quick-strike capability of the Oilers, but just might have been able to contain it.

Sure, they had given up a couple of goals to…