1. A method of adapting a speech system, comprising: processing a spoken command using a first speech model of a first model type to obtain a first result; processing the spoken command using a second speech model of a second model type to obtain a second result; evaluating a first frequency of an association of the first result and the first speech model; evaluating a second frequency of an association of the second result and the second speech model; and selectively updating at least one of the first speech model and the second speech model, wherein the selectively is based on the evaluation of the first frequency and the evaluation of the second frequency.