They don't get much recognition and aren't going to put up any points for your fantasy team when they do jump to the NFL, but top offensive line prospects are some of the most valuable commodities in the league. Simply put, good teams have good lines.
It should come as no surprise that four of the top five prospects this year are offensive tackles, because teams value big men who are agile enough to hold their own on the edge. Here's how our top five have fared in games I've broken down this season, as well as a look at a mid-round sleeper with the skill set to climb draft boards. Draft-eligible underclassmen are noted with an asterisk.
Which prospects are coming on strong and which have struggled? ESPN Insiders get access to the answers. 
Steve Muench
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Todd McShay (left) is the director of college scouting for Scouts Inc. McShay, who played quarterback at Richmond, has been evaluating NFL prospects since 1998. Follow Todd on Twitter: @McShay13
Steve Muench (middle) played guard at Richmond and worked in the athletic department there and at Boston College before joining Scouts Inc. in 2002. Follow Steve on Twitter: @SteveMuenchESPN
Kevin Weidl (right) is a former quarterback for Indiana (Pa.) University who worked in the pro scouting department for the New York Jets before joining Scouts Inc. in 2007. Follow Kevin on Twitter: @Kevin_Weidl
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