Free agency is an important aspect of any NFL team and can provide a club the ability to fill some glaring holes. But every head coach and general manager is quick to access that the best method to build a proficient caliber team at all positions is through the annual college draft.
The first three rounds of the draft are critical to the success of any franchise. That is not to say that good - or even great - players cannot be found in the later rounds.
However, the first three rounds are vital to the foundation of every NFL club.