Winning in the NFL by the numbers.
Here is an interesting chart trying to illustrate the correlation between the overall winning percentages of teams in the past 5 seasons (2007 – 2011) and the number of free agents they sign. The coloured characters represent free agents as a general average in signings. General trend suggests that the more free agents a team signs, the lower the winning percentage. Extremities such as the New England Patriots and New Orleans Saints prove otherwise.