We're six days away from the official start of NFL free agency, and we're four days away from the start of the "legal tampering period." Meanwhile, all eyes were on Indianapolis for the NFL combine last week, and fans are excited to see where their favorite teams go in the draft in April.

What is the biggest need for each of the 32 NFL franchises? Football Outsiders looks here at the biggest hole on each team's roster as of the beginning of March.