We can't defend and don't know how to play with the lead
Yep, and it's a consequence of this:
We lose our puck battles.
Vegas can sense this. Which allows them to play hyper aggressive PK.
They know they'll win the 1 on 1 battle, and take possession.
So Vancouver has to review their fundamentals.
Either learn to win the 1 on 1s individually, or win thru a better system that overloads every 1 on 1 with numbers advantage.
But overloading is a by-product of depth.
If your depth guys are just better than the opposition's, it's easier to win the 1 on 1s.
Win the 1 on 1, and take possession.
So our issue has to be solved with a combo of these:
Better depth, better fundamentals-training, or better system.