The Philly Inquirer notes that Brian Westbrook's 33 carries were thanks to the conditions on the field, not a change in Andy Reid's scheme.
Of course, it also notes...
Still, only two teams in the NFL have thrown the ball more than the Eagles, and 13 have run the ball fewer times. This season, teams that are most committed to running the ball - such as the Giants, Tennessee, Baltimore, Carolina and Atlanta - are among the most successful.
Ugh.