The Chicago Bears have plenty of questions about their offense that they need to answer during training camp.
The Detroit Lions are installing an entirely new offense and the process will accelerate in training camp.
The Brett Favre situation will loom over the Packers' training camp as a distraction until it gets resolved.
The Vikings made what they hope will be a few huge upgrades in the offseason, but the additions must get used to a new system in training camp.
