No but, the CMA notwithstanding:
See this link. There are three K-FROG country stations in locations that surround L.A. County. Together, the K-FROG stations reach the entire Southern California area, including the L.A. market. Undoubtedly the K-FROG stations will be the beneficiary of KZLA going to a different format.
In the meantime, instead of being unique within the L.A. market, KZLA becomes just another pop/urban music station in a market croweded with them.