I should add that imo you have to be careful about assuming that a particular trade based or draft based strategy is the right answer. Kevin Demoff points this out in his recent interview on the Rams site. A lot of elements have to come together for a free agent driven strategy to work.
The Rams have these right now. Rams have a contending team, a championship window driven by AD, a super attractive location, a coach players want to play for. And an owner with deep pockets, the best new stadium anywhere, a win now direction to the club, and a need to make a big splash in LA.
But without a solid core adding pricy free agents is a losing strategy. You have to have some critical mass of a good roster first, which almost always begins with the draft. Cincinnati is certainly showing how this can work even in a smaller market.
Fisher with Snead had built a core roster, but in St. Louis the franchise simply couldn't attract big time free agents, and not just because of the location.
Rams have so far proved that they can target the right guys. They wouldn't be in the Super Bowl without late season additions of Miller and OBJ (as McVay said this week.) They have not only fit in but filled key structural positions that have enabled both the offense and defense to play much, much better. Stafford has similarly repaid McVay's faith in him, though he needs to win the big one to fully eclipse the Detroit narrative.
And the Rams have thus far have backfilled the roster with lower draft picks.--- though at times and without the addition of Miller and OBJ this was looking perilously close to a not quite good enough strategy which left holes in the roster. There are still holes in the roster which might have been filled with higher draft picks.
I highly recommend Demoff's recent interview on the Rams' site for his extraordinary candor and humility about all this. He points out that the strategy thus far might not work next year or might need to change going forward at any time. It is NOT set in stone. Also credits Kroenke and McVay big time for the foundation of the Rams' success (as well as Snead and others.)