Being able to throw the football is one thing. Knowing where to go with the ball is something else.
We've seen former Oakland Raiders quarterback JaMarcus Russell get back on the field and sling the football around, but NFL teams are going to want to see more than just a big arm.
Any general manager or personnel executive will want to not only see where Russell is physically, but also where he is in terms of the many mental pressures of playing the quarterback position.
From recognizing pressure and changing protection at the line to knowing the responsibilities of each eligible receiver to reading multiple coverages, there's a lot on a quarterback's plate every time he steps to the line.
Those things all start in the classroom on the whiteboard. On Tuesday, Jeff Garcia took Russell through various facets of a quarterback's mental preparation in a makeshift quarterback school setting.
Let us know in the comments below how you see the former first overall pick doing when it comes to breaking down plays for NFL personnel.