CHATTANOOGA (WRCB)- Hamilton County Schools' largest principal shakeup ever is now at 27 moves, along with 50 assistant principal changes.

In addition to moves previously announced, Dr. Sonja Rich has been named principal of the Middle College High School at Chattanooga State.  Dr. Rich was previously assistant principal of Ooltewah High School.  She replaces Angela Cass, who has been transferred to Soddy-Daisy High as an assistant principal.

Assignments have also been announced for three principals who were displaced as part of Hamilton County's efforts to receive an Innovation Zone grant from the state.  In order to win the $600,000 grant, and possible additional funding, Smith had to transfer three principals -- Brainerd High Principal Charles Joynes, Dalewood Middle Principal Rodney Johnson and Woodmore Elementary Principal Visa Harper.  The schools were among five that were identified as among the lowest-scoring in the county, which qualified them for inclusion in the state's Innovation Zone.  (The two other schools, Orchard Knob Elementary and Orchard Knob Middle, had changed principals last year, and were not required to make another move.)

The three transferred "I-Zone" principals are now assistant principals:  Joynes at Ooltewah High, Johnson at Ooltewah Middle and Harper at Wolftever Creek Elementary.  Also transferred was Jason McKinney, an assistant principal who was among five educators suspended at Signal Mountain High earlier this year in a drinking-related incident on a student cruise to the Bahamas.  McKinney is now an assistant principal at Normal Park Museum Magnet School.  Two guidance counselors at Signal Mountain, Dr. LeAnn Welch and Dr. Anne Cushing are no longer listed on the school's website.  Their new assignments have not yet been announced.  Both were among the five suspended in the incident, and both were given harsher suspensions over allegations of drinking on school property.