So we draft a LT and let him sit??? We are in a position to draft a developmental LT perhaps in round 2. Saffold was a second round pick and started day 1. We need guards more than tackles and there are none worth a top 15 pick. Let's actually draft players we need right now.
To restate what i said, We don't need a top 10 LT as long as we're paying Long the big bucks. I agree we need to upgrade the position by drafting a quality depth guy in case of injury. That's how you maximize your picks.
I know this is extra long but there is some new meat in here!
First lets just take Jake Matthews to apply to your your 3 question marks

could JM start @ both of the Rams OG posts? Absolutely JM could.JM has started on both sides of the OL left & right. If Jake Long suffered a set back in his rehabbing event late into pre-season who would you trust the blind side of Sam Bradford with? as you suggest it would be a second or third day developmental draft pick? Not good for the health of a QB who has missed major portions or all of three of his last five playing seasons due to injuries. So with a talent & skilled prospect like a JM Rams get an instant insertions of a OL'er who can pass block & run block with high proficiency that can inserted into any of the four OL posts. Plus now you have your starting 2015 ORT when Joe Barksdale enter UFA. Sound so very wise & smart to me.
Ok secondly if we selected OLT Gerald Robinson you have a some of what you get with JM. GR would be an instant upgrade @ OLG post not seen by Ram fans for many decades. GR would not sit for a one second with this current Ram OL. He may be a bit green in his pass pro technique but he has been blessed with the ability to be better as a OLT than Jake Long once he gets some more experienced under his belt. Would it be smart to pass on drafting a future young Jake Long? That could make you

in a season or two.
To you point on a developmental OLT that you think will be there on Day two? The need for OG's would still remain even if JM or GR took up one of the OG starting positions. The Saffold selection was the
very first selection on the second day of the draft #33rd. Basically just 1 pick away from being a first rd pick. I need some help cause I do not see a college OLT that probably be there with our #44 th pick in the second rd can you help me find one. The Rams were very lucky to land a OLT back in 2010. But Saffold was not selected to be a OLT he was selected to be a ORT but Jason Smith was unable to play OLT in the opening weeks of the 2010 TC so Saffold claimed it and never looked back that season. NFL orgs. never know what may happen to your critical starting OLT it sure was good planning by the 2010 Ram Org to have drafted a OT was it not?
Now on to the big bucks that's being paid...NFL teams do pay OT's big bucks look how fast the OT's went off the draft boards just less than a yr ago in the draft. Teams like KC Chiefs, Eagles & Chargers took OT's in the first half of the first rounds & all three ended up playing in the playoffs a position those teams were not in in 2012....not saying that the reason but its there.
That got my small brain to working some....there have been dozens of first round WR's like Rams Tavon Austin was selected in the first round over the last half decade. Wonder who many of those first picks ended up in the payoffs as a rookie..where those teams were not there the year previously ....Zero!

That's odd. Looks to me that NFL Orgs place a very high priority on selecting OT's even today.

It sure made the GM's for the Eagles/Chiefs & Chargers

.
I mentioned that Barksdale will be a UFA 2015 think that a 2 yr young healthy large smart ORT like JB will not demand "Big Bucks" in 2015? What happens if Jake Long mounting surgeries & aging war torn body can no longer hold back the speeders @ RDE? In 2015 the Rams could be minus a ORT due to UFA and be forced to pay "Big Bucks" for a degrading declining 30 yr old high cost OLT with no legit OT on the roster to assist them in this nasty OL situation. We know that half that scenario is going to occur the other half is also possible too. How smart would it look if the Rams had made the proper selection in preparations for these up coming issues & not just grab that shinny flashy bright WR off the toy shelf but prepare smartly for the future probable situations that will have more serious implications on the overall future Ram teams.