O Line Going Forward

Not having the numbers in front of me, but is there a chance we keep Warford? I know he's getting paid starter money, but late season injuries have plagued our O-line in recent years. Is there some kind of rotation or packages that Warford could be used in and keep him as insurance? Getting rid of Warford would mean we maintain/improve a top O-line, but still have no depth.
My initial reaction was “trade or release Warford” to save some cap space; however, the more I think about it, the line depth in Brees’ possible (probable?) final season is probably even more valuable. Even if it’s just a game or two at a time (God forbid more serious time away), linemen go down sometimes. We’ve seen how critical interior line stoutness is for Brees.