The NFL Draft big board is an evolving organism that changes drastically throughout the college football season and even after that leading up to the draft. Look back on any preseason big board from prior years, and you’ll find radical adjustments from where things started. For instance, Joe Burrow went from probable Day 3 obscurity to the No. 1 overall pick in last year’s draft. BYU quarterback Zach Wilson experienced a similar meteoric rise this time around.