Kovacevic: Yet another multiple-goal collapse, faults with every phase ... this stuff won't just fix itself

BUFFALO, N.Y. -- "I believe."

This was Evgeni Malkin late Wednesday night in a largely empty locker room at KeyBank Center, minutes after the Penguins' most recent mind-blowing, multiple-goal-lead-blowing collapse, a 6-3 loss to the Sabres that ... I mean, I'm not even sure I've processed it yet on its own merit, let alone when combined with what I'd witnessed less than 24 hours earlier.

This was one saw a 3-1 lead staked on Jake Guentzel's stirring strike eight ticks into the third period:

Only to segue into the Sabres scoring ... the final five freaking goals.

The collapse the previous night at PPG Paints Arena, of course, saw a 5-1 second-period lead segue into the Bruins, too, scoring ...…