Thompson, though, says implementing the change won't be so big of a deal.
"A veteran coach who coached the 3-4 for a long time said the only change is that one end plays with his hand up instead of on the ground," explained Thompson.
Other changes Packers fans have clamored for in the offseason has been one in personnel.
Much talk has come about trying to acquire defensive free agents like Carolina defensive end Julius Peppers, Tennessee defensive tackle Albert Haynesworth and Baltimore linebacker Bart Scott.
Thompson, however, might not be changing his free agent philosophy for this off-season.
"I don't think it's going to be the helter skelter that everyone is anticipating," said Thompson.