Lombardi should do the same thing he did in 2013 and 2014, deal dead weight.
He should try and deal Gilbert, Setogucchi, Clifford, Purcell, and King. He should call up Brods and Kempe. Nick Shore should be on waivers - he is terrible.
Only two of those guys are really regulars in Clifford and King with one of them not even being in the NHL.
Shore has more trade value than Gilbert, Seto and probably Purcell.
You've brought up trading guys like Loktionov/Drewiske/Westgarth as evidence of dealing "dead weight" but they weren't even playing and they didn't get anything for them. Plus it was at the beginning of the season. They also let a regular NHL defenseman go for absolutely nothing that off-season.
Anyways, the scenarios aren't comparable for multiple reasons.
I know you want the rookies in and I'm not opposed to them seeing some action, but it is wishful thinking to think that this team is all of a sudden going somewhere because Seto and Clifford are gone in favor of two kids with zero NHL experience.
The King/Nolan call-ups worked in conjunction with a coaching change and the Carter trade that put Voynov in the rotation as well. It wasn't just "new blood" making the difference.