8. A system comprising: a processor; and a computer-readable storage medium having instructions stored which, when executed by the processor, cause the processor to perform a method comprising: projecting an expected demand for speech recognition resources; identifying, based on the expected demand for speech recognition, a main speech recognizer and a supplemental speech recognizer; assigning the main speech recognizer to recognize a plurality of speech from a plurality of speakers; beginning to process the plurality of speech using the main speech recognizer, to yield main results; and upon determining that first speech recognition results of a first user in the plurality of speakers have a lower accuracy than alternative speech recognition results of a second user: assigning the supplemental speech recognizer to recognize speech from the first user, wherein the assigning of the supplemental speech recognizer is a reallocation of the supplemental speech recognizer away from the second user; continuing to process the speech from the first user using the supplemental speech recognizer and the main speech recognizer, to yield supplemental results; and combining additional speech recognition results, produced by the main speech recognizer, and the supplemental results.
8. A system comprising: a processor; and a computer-readable storage medium having instructions stored which, when executed by the processor, cause the processor to perform a method comprising: projecting an expected demand for speech recognition resources; identifying, based on the expected demand for speech recognition, a main speech recognizer and a supplemental speech recognizer; assigning the main speech recognizer to recognize a plurality of speech from a plurality of speakers; beginning to process the plurality of speech using the main speech recognizer, to yield main results; and upon determining that first speech recognition results of a first user in the plurality of speakers have a lower accuracy than alternative speech recognition results of a second user: assigning the supplemental speech recognizer to recognize speech from the first user, wherein the assigning of the supplemental speech recognizer is a reallocation of the supplemental speech recognizer away from the second user; continuing to process the speech from the first user using the supplemental speech recognizer and the main speech recognizer, to yield supplemental results; and combining additional speech recognition results, produced by the main speech recognizer, and the supplemental results. 11. The system of claim 8 , wherein the supplemental speech recognizer is assigned to idle based on decreased demand for speech recognition.