Oher is a very athletic blind side tackle who excels in pass protection. His run blocking has been criticised at times but is certainly not bad enough to warrant any serious concern. Smith is a heavier set individual who is dominant when running the ball. There are question marks regarding his pass protection though and whether he can deal with elite speed. Bernie Miklasz from STLtoday raises the concern in his blog here. Smith may project better at guard or right tackle. Either way, as many as five offensive tackles could be taken within the first fifteen picks.