Drafting review - top selected players at each position over last 10 years

Link: http://espn.go.com/nfl/story/_/id/15193220/players-clearly-best-nfl-draft-prospect-their-position-often-live-nfl I thought this was a particularly good article. Shows that the generally accepted top players at each position don't always have success. I remember that it seemed at one time a offensive lineman drafted in the 1st round was one of the safest selections a team could make. Not anymore.