Penguins preseason: How do Erik Karlsson, Rickard Rakell and others fit with power play improvement?

In his daily First 10 podcast, Post-Gazette sports columnist Jason Mackey ponders the Penguins' power play unit as it looks to improve on an ugly 2023-24 NHL season. How will new assistant David Quinn shake things up, both in terms of personnel and scheme? How do pieces including Erik Karlsson and Rickard Rakell fit within that dynamic? And how can they help the Penguins get more out of stars Sidney Crosby, Evgeni Malkin and Kris Letang?
Jason tackles those topics ahead of the preseason home opener Tuesday night, then weighs in on the Pirates' final MLB homestand over at PNC Park. Can they match their win total from 2023? What consequences should follow for manager Derek Shelton and GM Ben Cherington if they don't? And what is Ke'Bryan Hayes future after being shut down for the season yet again with back issues?