Top 5: Seniors by position

While my Big Board offers a look at the top 25 overall prospects, these rankings allow you to get a better sense of depth at each position. Below are the top five seniors at each position as we get the 2012 season going, and I've also ranked the top five juniors (or draft-eligible sophomores) at each position. The senior class is obviously a bit lighter in overall talent after the departure of so many juniors to the NFL, but it's still loaded with high draft picks.

For prospects together, here is the first 2013 NFL draft Big Board of the college football season.