Hayes has ALWAYS stunk. He has had like one good year and only produced because he was able to be put up against 2nd/3rd lines due to their teams forward depth.
I don't mind getting him for a 6th, whatever. But flipping him a year later for a 2nd is unacceptable asset management when this team is in the middle of a rebuild.
Draft picks are used to better your team. Have you ever heard of addition via subtraction? That's what we just did with Hayes, we are infinitely better without him. It's a good use of assets. It's not like we needed the cap room, we got rid of him because just his existence is a detriment to the team.