Of all the FA's I really think Blalock is the best fit even though he is north of 30. He plays LG, which would allow Saffold to move to RG or RT (prefer him at RG). Blalock he is best in power running game (Check) and he knows Coach Boo.
RT could be the most glaring hole on the team if Barksdale does not return. Outside of free agency, the internal options to fill that void are: Moving Saffold; inserting Jones, Washington, Baker, or Bond there; or bringing back Jake Long at reduced rate in June/July; or via the Draft (1st or 2nd rounder). On the FA Tackle list provided by TexasRam (thanks for the list) the only other options (aside from Barksdale and Long) in the top 10 still available are:
Byron Bell (Carolina): Age 26, 6-5 340 lbs – An undrafted FA in 2011 he played RT until 2014 when he was moved to LT with the retirement of Gross. He struggled badly at LT struggled in 2014 and the Panther opted not to try and resign him.
and Antony Collins (Tampa and Cincinnati): Age 29, 6-5 315 lbs - A former 4th round draft pick of the Bengals played pretty well in Cincinnati (2008-2013). He was signed a FA by Tampa in 2014 where he was benched due to struggles in pass protection and he was finally cut this March (I think we have had our fill of former Tampa linemen for a while).
Getting a veteran replacement at RT should Barksdale not return may actually prove very difficult meaning that drafting one early may be the best option, and there are a some promising RT options available in this draft (IMO).
I am not as concerned about center because I think the Rams have some young options (as has been noted above) and this is also a pretty good draft for centers.
As things stand now I could see the Rams starting one to two rookies along the line (probably 1) in 2015 because this group of free agent linemen just is not very inspiring.
