O'Sullivan and a second round pick in the 2005 NFL Draft were traded to the Green Bay Packers for Mike McKenzie on October 4, 2004. After the trade, O'Sullivan was inactive for 11 games as the third quarterback.
The trade involved O'Sullivan and a second-round draft pick from the 2005 NFL Draft being exchanged for Mike McKenzie on October 4, 2004.  This resulted in O'Sullivan becoming inactive for eleven games as the third quarterback.