The Joba Rules are about to change, The Post has learned. And after watching Kyle Farnsworth almost flush a Yankees win last night, the alterations can't be made soon enough. Joe Torre and minor-league pitching coordinator Nardi Contreras, the creator of the Joba Rules, talked yesterday via phone about altering the way 21-year-old right-hander Joba Chamberlain will be used out of the bullpen. Since arriving in the big leagues Aug. 7, Chamberlain has been tethered to the following program: One inning pitched requires one day off. Two innings requires two days of rest. Three innings of work means three days on the pine. And he needs two days off before being asked to throw two innings. Nevertheless, because Chamberlain's pitch counts have been very low (he is averaging 14.3 pitches an inning in his past six outings), and he is in the third week of being a major-league reliever after starting for the majority of the season in the minors, the Joba Rules will be altered.