I don't see this year's round 1 and 2 pick and next year's round 1 and 2 pick as mortgaging the future, personally, and that would be an offer I'd be happy to make to move way up. My reasoning is the Rams have a strong roster, and are very shrewd with the cap and have the space to fill holes quite well in FA. QBs that make a difference do not come available in FA and the lesser options you find cost more than they should. QBs that make a difference are extremely hard to get in trade. The draft is the way to go, it's what Snead's gonna have to use to finally un-F the position.
So IMO just do it man. Determine which QB you love, which guy you are absolutely sold on, and make it happen. I'd go up all the way for Goff and laugh all the way to the playoffs every year once he comes online because I'm that certain he's gonna be an elite QB in this league. And worst case scenario if Goff struggles to learn the system right out the gate then sure, let's go ball control with whoever wins the QB battle out of Keenum/Foles/Mannion.
I really think it's that simple and hope the Rams don't overcomplicate it through over-analysis.