After a lot of offseason film study and conversations with NFL coaches and scouts, this is a quick look at each team on offense and defense heading into the regular season. It is a capsule of what philosophy we will likely see on both sides of the ball as well as who is calling the shots. Here: the Green Bay Packers.
Scouts 2009 capsule -- Green Bay Packers
The change in defense could be very good -- or horrible. To learn more, you must be an ESPN Insider. 
Offense
It looks like the Packers have an exotic offense at times, with a lot of personnel groupings and motion -- all of which is designed to confuse opposing defenses and create favorable matchups.
QB Aaron Rodgers is underrated as a deep passer and can be very effective on vertical throws. The Packers still love to throw their patented slant route to physical receivers who can rack up yards after the catch. They continue to utilize a zone-blocking offensive line, and really want more production out of their run game, but their personnel has been inconsistent.
In positive news, this is the fourth year they've run this attack, which has the potential to be explosive. Offensive coordinator Joe Philbin is well respected, but head coach Mike McCarthy has a lot of input into the offensive philosophy and game plans. There are rumors that the Packers would like to install more man-blocking schemes, but that remains to be seen. We will see multiple-receiver formations, some "bunch" looks and pre-snap movement to get those good matchups.
As happy as the coaches are with Rodgers, they want him to become a little more of a difference-maker, especially late in games -- an area in which the Packers were poor in 2008. Rodgers also must start winning games when they are behind. If RB Ryan Grant returns to form and the offensive line stays healthy, the Packers will have an above-average, perhaps very good, offense in 2009.
Defense
There are dramatic changes here with a new defensive staff, including NFL veteran and former Carolina Panthers head coach Dom Capers, who is coming in to run the unit.
The Packers are likely to switch from a 4-3 to a 3-4 this season; the latter is Capers' background.
A concern last season was their pass rush: It put too much pressure on a secondary that played more tight man-to-man schemes than any other team in the NFL. There is a feeling that the 3-4 will not only make the Packers more physical versus the run inside, but it will also make a meager pass rush better, with more athletic linebackers rushing off the edge.
This is a defense that lost seven games by four points or less in 2008, and the Packers simply could not hold a lead late in games. The coaches want more consistency in a "bend, but don't break" philosophy.
There are two main problems with the defensive scheme changes, though. Last year, the secondary had 22 interceptions and was a bright spot for the team in bump-and-run coverage. Capers will remove such press schemes, a change that may not be good for corners Charles Woodson and Al Harris. The other problem? Most of Capers' defenses have played "sub" packages close to 50 percent of the time. That requires a good deal of versatility among personnel, which Green Bay doesn't necessarily have yet.
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