Hughes has a plan. It's clearly not your plan. He has zero interest to leave the long term faith of the team to luck at the draft. That's not how you rebuild. That's how you become another Buffalo, Arizona and Edmonton: teams that sucks for decades.
Eddy isn't going anywhere. Hughes wants 4 veterans dmen to shelter the prospects dmens if they struggle. He's going to acquire another one before the season start (a RD).
Getting Dach was a good move. There might have been talent on the board, but none that would play on the NHL in a top 9 center position next season and that was a team need. As a bonus, he has untapped potential to be a top 6 center. Also, like for the Matheson trade, Hughes asked questions to his entourage. Had Dach not fit into what he wanted to build, he wouldn't have traded for him.
MSL clearly didn't like Poehling, lots of posters realized that toward the end of the season. He wasn't going to stay.
Expect more prospects the new management doesn't like to be shipped to dump contracts this summer.