The laws governing teacher firing were changed in 2014 [1], and credential revocation has become compulsory in a large number of cases. The Commission on Teacher Credentialing opened 361 discipline cases last month alone [2].
I'm in metro Sac and got my numbers from this local district [3]. Looking at the numbers for Menlo Park City [4], the max pay rate is still only $130K, and that would require a PhD and over 20 years of service. A teacher with a BA never reaches $100K.