That was a pretty good season for Purdue.
Had a saucy defense with 1 player drafted in 2003 and 7 who were productive upperclassmen then drafted in 2004.
With that defense, despite being a "basketball on grass" spread team, it was a much more balanced attack than other Purdue years. Jerod Void rushed for just under 1,000 with two other RBs getting around 600 combined yards on the ground. John Standeford had more than 1K receiving yards with Taylor Stubblefield not far behind at 835. Kyle Orton wasn't yet the Heisman favorite that he became after week 5 of 2004 (right before his injury and The Fumble against Wisconsin), but played well.
Team finished 9-4 with a 6-2 conference record. Spent most of the season ranked with wins over #20 Wake Forest, #14 Wisconsin, and #10 Iowa. They opened the season with a better-than-it-appeared-at-the-time loss to a pretty darn good Bowling Green team [who had just promoted their OC after previous HC Urban Meyer left to go sell used cars or something--what happened to him anyway???], had one blowout loss against #10 Michigan, and OT losses to #4 OSU and #11 Georgia in the bowl game.
Probably the best overall team of Joe Tiller's era at Purdue, and yes I'm including the Rose Bowl year in that statement.