I think there's almost certainly no way Kenny shakes up the blue-line now unless a trade for someone serious presents itself. I don't think he'd be actively pursuing someone, but if say things fell apart with Doughty and Los Angeles. Only scenario I could see. Bringing in some kind of "upgrade", but at defense the only guy who could move out would be Kindl. Everyone else on defense just doesn't seem feasible as someone to move out.
If anything, I could see them trying to get a depth forward to take Huds/Flip's spot, but not a defender.
I agree... if something with Doughty or Weber fell through with negotiations, those are guys you make a major play for if it presents itself, but I don't see him pursuing a trade at D at this point...
With that said, I wouldn't say only Kindl is expendable... if a player like Weber became an option, Ericsson, Stuart and maybe even to a lesser degree, Kronwall, become potential trade-able assets, just due to the rarity of the talent level you get back in Weber...
This is all hypothetical anyway though, and I don't see anything materializing of all of this, so it's probably a moo point anyway (It's like a cow's opinion. It just doesn't matter. It's moo.)