Spags used multiple blitz packages, with Chris Jones, better lBers. They've used his system for years, which also calls for the DB/CB to blitz.
I'm not sure the Rams can match up to their personnel right now. They are without Garrett, and their LBers aren't as good as the Chiefs. I image McDuffie and Watson could be effective, but I don't know how much they have been working on it with the Rams.
I would like to see an uptick in blitz packages. Shula has occasionally shown some creative blitz packages, so he knows how to call them. The Rams can't keep sitting back while they get picked apart with the soft zone defense and no blitzing. Tighten up the coverage with some creative blitzes could really help the Rams defense.