The Nation Network Notebook is a regular feature that rounds up interesting news, stories, and rumours from around the NHL that don’t quite deserve their own article.

Pittsburgh might not be able to last with this group of defensemen in the playoffs. Bobby Ryan is scoring! Jean-Gabriel Pageau is a playoff stud. Kevin Shattenkirk wants a bigger role and teams will be lining up to give it to him.

Pittsburghs defense

Pens were bad in shot differentials against the Caps but I did not anticipate this… https://t.co/movNNkzCmO

— Matthew Coller (@MatthewColler) May 14, 2017

It’s hard to bet against Sidney Crosby and Evgeni Malkin, but Pittsburgh’s group of defensemen might finally be the weakness everyone expected it to be with Kris Letang injured.