Agreed, that would be very ideal. We have enough defensive Dmen anyway, with Larsson, Nurse, and Reinhart who is developing nicely, by all accounts. The league is moving towards having puck moving D over defensive Dmen who can't really move the puck or add offense. It seems that teams with high D offensive output seem to be in playoff positions, and the ones that don't are in or near the bottom of the standings. That's not the only aspect or reason why, but I think it's certainly one of them. I could be wrong, but I think if you tally all the points from Dmen for each team, you'd see that teams with the highest offensive output from their D are in playoff positions for the most part (not 100%, but most of them). You need Dmen who can move the puck up the ice efficiently. Luckily for us, Larsson and Nurse are great two-way guys, so it's not like they lack that ability. Russell I don't think is needed.
I'd rather try and get a guy like Mike Green from the Red Wings
and add more offense from the D, and another weapon on the PP, and he can play on the right-side on the 2nd pairing with Sekera. But that's just my two cents.
As for Zach Aston-Reese, not sad about 'missing out' on him. Seems he had one big year this past season. But looking at prior seasons, they are very mediocre to bad -- especially with the goal scoring. Doesn't seem to me like someone who has high potential in the NHL. Could be wrong, of course, but I would be very surprised if he becomes a star, or even a high-end 2nd line scorer. But we'll see.