1. A method of controlling a vehicle powertrain, comprising the steps of: determining that a performance feature associated with the powertrain is outside of a desired performance range; identifying a plurality of operation parameters associated with the powertrain having a relationship to the performance feature; automatically adjusting at least one of the identified operation parameters to thereby bring the performance feature closer to the desired performance range; determining an influence that each identified operation parameter has on the performance feature; and prioritizing adjusting one of the identified operation parameters having a first influence over another identified operation parameter with a second, lower influence.