Each year a player’s stock rises tremendously due to performance at the combine (or based on Al Davis’ fancy). While much of a prospects’ mock draft ranking is based on past performance, much is also based on “intangibles” and phsyical attributes. We decided to investigate the speed, agility and strength of the top 750 prospects over each of the last 7 years using data collected from CBS sports . As expected, skill position players are fast, and lineman are strong. Just how strong and how fast? Check out the following graphs to find out.