The star senior duo of Da'Vonshai Harden and Ky Thomas will try to lead the Trojans to the top of 6A.
Kansas City also called up Brett Phillips.
Hudy had been with the Jayhawks for 15 seasons.
Mittie's contract now runs through the 2023-2024 season.
The Hornets will field an inexperienced group of pass-catchers.