2013 Guide: What Ourlads' NFL Scouting Services said about JC TRETTER: Cornell, 6035 302 5.04. Two-year starter who is very athletic and technique conscious. Plays in balance with good body control. Positive weight transfer and change of direction. Smart and active competitor who was a quarterback in high school. Came to Cornell as a tight end, but moved to left tackle in 2010. An ascending prospect with good hip and knee flexibility. Has an abundance of natural talent. Needs to become accustomed to NFL speed and blocking technique. Will need better core strength to anchor a bull rush. Needs work on run blocking and pass protection. Has a frame to gain more positive weight. Did not play in the Senior Bowl after breaking his nose at the IMG Academy where he was doing his offseason training getting ready for the Combine. He did interviews however in Mobile. Grades out as a developing draftable prospect with measurables and athletic ability for the guard position. OSR:11/ 49. Fifth/sixth round. (A-33 3/8, H-10 1/8, BP-29, 10-1.75).