Weighing the upside of draft's top tackles

Auburn's Greg Robinson, Texas A&M's Jake Matthews and Michigan's Taylor Lewan are three top tackles the Rams could be considering in the May draft. Joe Robbins/Getty Images

The key decision makers of the St. Louis Rams circa 2009 have long since departed but when it comes to the thought of taking a shot on an unfinished product at offensive tackle with the No. 2 overall pick, the bad memories are still fresh enough to make at least some Rams fans cringe.

That was the year the Rams used the No. 2 choice on Baylor offensive tackle Jason Smith, a converted tight end coming from a spread offense with a reputation as a ferocious run blocker but a work in progress as a pass protector. Sound familiar?

At least on paper, one can look at Auburn tackle Greg Robinson's scouting report and see a similar description save for the tight end part. The comparison surely won't play in the minds of the Rams' current brain trust, a group that had nothing to do with Smith's selection but it's fair to at least consider the flip side to Robinson's upside.

"To me, if you look at Robinson and having Jason Smith not that long ago come to St. Louis as the second overall pick out of Baylor, is that something that factors in here?" ESPN draft analyst Mel Kiper Jr. said. "I don’t necessarily think so because I think Robinson comes out as the much better prospect, he’s the consensus No. 2, No. 3 guy in this draft. But does he need a little work before he settles in and becomes a great left tackle? Yes. But that could happen, that light could go on immediately, he’s that good a football player."

Smith lasted three injury-plagued seasons in St. Louis and bounced between the New York Jets and New Orleans Saints before his release left him without a team last August. Many of his problems were tied to an apparent lack of love for the game, a problem scouts say Robinson doesn't have.

As the Rams continue vetting the top three offensive tackles -- a group that includes Texas A&M's Jake Matthews and Michigan's Taylor Lewan in addition to Robinson -- they'll have to weigh the downside of each prospect in addition to the potential.

Robinson probably has the highest ceiling of any of the trio but he also might have the lowest floor. In Auburn's offense, Robinson was the most feared run blocker in the college game but rarely had to pass protect. That isn't to say he can't do it, just that he hasn't done it much.

“Robinson, obviously, (is) very athletic," Rams coach Jeff Fisher said. "He’s got a tremendous upside, probably has not taken as many snaps in a pro-style offense as Lewan, but very athletic, there’s flexibility, think he could move in and play guard or other tackle as well. It’s going to take him a little more time.’’

Matthews, in many ways, is the opposite. A polished pass protector with experience at both tackle spots, Matthews also comes with the famous bloodlines (he's the son of Hall of Fame offensive lineman Bruce) that would seem to limit any potential downside he might have. It's unfair to say Matthews has reached his ceiling but he doesn't carry the same size and athleticism combination of Robinson, either.

Fisher coached the elder Matthews in his time with the Oilers/Titans and can see the similarities between the father and son.

"Bruce having played all the positions and having been selected to the Pro Bowl at all the positions, probably one of the more flexible offensive linemen to ever come out," Fisher said. "I think (Jake) has got some similar traits, we haven’t seen Jake play center yet, or guard, but athletically could do both I’m sure.’’

Like Matthews, Lewan also projects as a ready-made tackle capable of stepping in and limiting the risk in terms of his on-field projection. But Lewan will also have to answer some questions about some off-field red flags before the draft.

“(He's) just very well coached, very consistent, finishes plays, he’s what I think, what you see on tape is what I think everybody would look for in that type of tackle,’’ Fisher said.

Since the arrival of Fisher and general manager Les Snead in 2012, the Rams have had no problem choosing players who aren't as polished as other options. Much of that stems from their belief in a veteran coaching staff, but so far that has yielded mixed results. For every Michael Brockers who seems to be trending in the right direction there's a Brian Quick, who the team is still waiting on to produce consistently.

As with all draft prospects, there's no guarantee any of the tackles will pan out.

"Matthews isn’t the talent that Robinson is," Kiper said. "Matthews did have a couple of games in pass protection where he showed he needed a little work at left tackle. Remember he had come over from right tackle. Robinson the same thing. From that offense, he’s going to need a little bit of work but all of the skills are there. You look at Lewan, he’s probably the most ready to be a pure left tackle."

Should the Rams decide to choose one, they'll have to decide whether most ready is more valuable than long-term upside.