Yikes..
Pixie... game set match. Yikes.
I remembered the discussion about Cole and I found the thing about Schultz when trying to find that. It's kinda funny, actually. Bringing it from the last page, here's what I can piece the Penguins defense to look like based on what Pixies has suggested:
-Trade a 3rd for Beaulieu, when the Penguins didn't have as high of a 3rd round pick as the Sabres had. In reality, it would have actually been a 2nd most likely and Beaulieu got a lot of money on his extension ($2.4 million AAV). You've also said they should replace both Hunwick and Dumoulin with that, which you can't do.
-Trade a young winger for a #2 defenseman, didn't provide a name or any other specifics.
-Re-sign Dumoulin for only 2 years and Schultz for only 1 year, while letting both go after their contracts are done.
Let's say they don't make that trade this summer, instead they wait until Sprong is ready. That gives them this D group:
Dumoulin-Letang
Maatta-Schultz
Cole-Beaulieu
For next year. Not much of a change, it would probably cost around the same because Schultz wouldn't be making much less on a 1 year deal than he makes on a 3 year deal and Beaulieu actually costs more per year than Hunwick does. After this year, you'd let Cole and Schultz both walk. Let's say they actually do make that trade for a defenseman at this point, let's pretend Sheary does enough next year to be the centerpiece for that trade. Now you have:
Dumoulin-Letang
Maatta-#2 defenseman
Pouliot-Beaulieu
The year after, you have Dumoulin walk, and now you have:
Maatta-Letang
Beaulieu-#2 defenseman
Pouliot-Unknown
I don't know why, but I like this D group in 2 years:
Dumoulin-Letang
Maatta-Schultz
Pouliot-Hunwick
More than that D group. That also doesn't even touch on who the mythical #2 defenseman is, plus I'm assuming that the Penguins don't find a way to make it work out with keeping Cole.
Dumo was an RFA. He is here next year regardless. You bring in Beaulieu instead of Hunwick and hope he blossoms like Schultz.
Like I've said, I'd rather have four Schultz on our D then anything else. Move the puck out of our zone and score. Dumo doesn't score.
And then when you let Dumoulin walk in 2 years, you suddenly don't have him anymore. That's the part you're ignoring. Beaulieu instead of Hunwick may have been a smart move, but you're not only saying "the Penguins should have traded for Beaulieu instead of signing Hunwick". You're saying "the Penguins should have only given a 1 year deal to Schultz and let him walk after, only a 2 year deal to Dumoulin and let him walk after and have traded for Beaulieu instead of signing Hunwick".