I've been lucky enough to watch both. Carlo right now is playing a better game but we need to consider that he has been thrust into the top pairing RHD position out of dire need in Boston. As a result, he has been the best defenseman on Boston but realistically can he keep this up at his age? I don't think so.
The learning curve for defensemen is pretty steep and if Boston doesn't get the #1 RHD to push:
Krug - Trouba
Chara - Carlo
...to their rightful positions (would be the same as putting Morrissey as the #1 but two years ago, where we would see a strong start like he has in his limited games but a full season would take its toll on Carlo OR Morrissey) so the Bruins can actually ice a solid enough team in front of Rask.
Different styles of play and Carlo is playing better early this season. It just goes to show you the depth of defense in Winnipeg vs. Boston where a guy like Morrissey/Carlo is playing the top pairing in one franchise at 19 while the other is still getting time to develop and prepare for that role.
The comparison also allows people who haven't watched the Bruins early this year (don't blame you) understand why people would currently not even want to move Carlo in a deal for Trouba.
Blow Chevy's socks off or the Jets let Trouba sit, and it doesn't sound like Boston's deal without Carlo in it does that.
I really think there's a deal to be made with Boston. Seems like most Jets are just so-so with Spooner, however, and most Bruins aren't keen on trading Carlo (and if he's playing as well as Morrissey right now, how can you blame them).
If you can trade up to a top 4 of:
Krug - Trouba
Chara - Carlo
wouldn't that be the ultimate? That's what you have depth for in an organization, so you can make these trades.
Jets have been after a top line LHD, but that very likely won't happen. Alternatively, I'd be keen on them getting some depth on D (and maybe a future D-man with at least potential to have the upside that Trouba has).
Here's a possibility to consider that allows you guys to greatly enhance you defense, while keeping your forward strength. What would you think of this:
Zboril (LHD prospect)+ Lauzon/McAvoy (RHD? prospect) + 1st.
I know this digs somewhat into your defensive depth (plus I know that many fans in Wpg would object to just getting prospects in a deal). For sure, this is a step down from the OP (Spooner + Carlo + 1st), but maybe something that meets our future needs better, and allows us to go 3D + 7F for the expansion draft.