I would question the late period goals. It isn't a rare sight, and while the Blues were throwing it into high gear, the Hawks have a huge habit of getting lazy and reckless in their own zone. To win this series, and any other series afterward, the Hawks will need to show more consistency. A lot of that is on Q as well, and getting his match-ups better.
Ben Smith has been a beast, and consistently. How he isn't centering that 2nd line all of the freaking time is a crime against coaching. Oh, and a bigger crime against coaching was having Handzus/Versteeg/Bollig out together in OT. Watching them get caught on an icing and Hitch having his choice of players felt like I watching the end of the season. Luckily for us and Q, he dodged a bullet.
If he is so set on having Zus kill penalties, so be it. But you can't put him on the 4th line with Bollig because that would be the worst 4th line ever. He needs to make a change so that 2nd line can get going. We can't have one line doing all of the scoring.
Which btw, so that thing that killed it in last year's playoffs, you know that line of Toews/Bickell/Kane? Shocker that it works again, huh. Well, only to Q apparently, who thinks hitting the line blender is the smartest darn thing in the world.
Best game of the series for sure, but it still wasn't enough to put the Blues too far away to make it really interesting. Watching the coaching in the first 4 has been a joke. Get Morin in, and like you said, Regin too. Move that Smith beast up to #2 center (freeing 10 and 88 from as you mentioned, the shackles of Zus) and get some consistency going. Go Kaner!
Crawford has been the superior goaltender, so we just need to be smarter and keep it in high gear.