While I am not opposed to "fixing" the Oline, using a compliment of high draft choices isn't necessarily the only way to go. I don't want to make this about the merits of assembling an Offensive Line, but if you take a look at Seattle, throughout the year, they didn't exactly have the best unit in the league. And yet they were still VERY successful running the football.
As Schottenheimer and the Rams displayed in the MNF game, its as much about scheme as it is about the individual parts of the puzzle. They were very creative in how they attacked Seattle's defense, and while it caught them off guard, it worked nonetheless. And that was with our "cast of misfits". But to your point of "pounding the rock", I agree with that 1000%. Run the ball, and thro off play action.
For me, I would like to see them do whatever it takes to upgrade the secondary, make the defense as complete as it can be. Keeping in mind, with as much youth and inexperience there is bound to be, it will again, take some time to fully develop. Seattle has the best secondary this league has seen for quite some time. But it didn't happen overnight. The Rams are 3/5 of the way to having a VERY GOOD secondary. Go get a legit CB (Nickel or otherwise) and find the compliment to McDonald at Safety and let them grow into the same sort of well oiled machine that is now seen I Seattle.