For those who care, there was a great breakdown of why Jamarcus Russell is struggling. Trent Green shows his poor footwork in this link on NFL network.
Then, he shows the outstanding footwork of Drew Brees and how it helps him be such an accurate passer.
Its just an FYI for all the fans that just think playing QB comes down to having a strong arm. Brees makes up for his lack of height, arm strength by working on solid fundamentals and technique. Its beautiful to watch.