Bro i'm sorry but CBJ or NYI would never do those trades in a billion years

So we give up our budding power forward who at one point was leading this team in goal scoring on the 1st line and a pick, and in return we get a bottom-6 center and a tenth LHD.

Yes, tenth LHD. For reference, here is the list of left-handed defenseman that Sieloff would be under on the depth chart in Columbus/Cleveland next year, assuming we don't sign anyone new:
Zach Werenski
Ryan Murray
Markus Nutivaara (altho, to be fair, he'll probably play on the right)
one of Ian Cole/Jack Johnson (we'll probably retain one)
--- NHL cutoff ---
Dean Kukan
Scott Harrington
Gabriel Carlsson
--- AHL cutoff ---
Vladislav Gavrikov (actually in the KHL still)
Doyle Somerby or Patrick Sieloff; they can battle it out for least relevant LHD in the system

If you want a valuable asset of ours, you could at least try sending us something valuable in return.

Why?

...so who on Ottawa would you like in return?

For Anderson? Doesn't look realistically possible to me; his current contract is necessary so that we can make it through the Cap Apocalypse the offseason after next.