A team's own NFL draft board isn't the only one that matters to them on draft night. A key ingredient to draft success is also understanding the other 31 competitors, and accurately determining the likely ranges where prospects should be selected based off of that.
Why? First, a failure to recognize a prospect's likely range means a team could draft that player far earlier than it needs to take him. The Raiders taking cornerback Damon Arnette at 19th overall and the Seahawks selecting Jordyn Brooks at 27th last year are perfect examples.