The purpose of this study is to explore the process of coaching a mentor of experienced teachers. In particular, we sought to determine if coaching would help a mentor to compare her espoused beliefs about mentoring to her mentoring behaviors and possibly resolve any dissonance. The mentor and coach (the co-researchers) participated in a platform conference, three coaching conferences, and a debriefing conference. In the platform conference, the mentor espoused the use of nondirective mentoring behaviors. The mentor and coach used the coaching conferences to review audio recordings of the mentor working with mentees during conferences intended to improve the mentees' teaching, and to engage in reflective dialogue concerning the mentor's interpersonal behaviors. The mentor experienced cognitive dissonance on several occasions during the coaching conferences when she discovered her use of directive behaviors in some interactions with mentees. Eventually, the mentor resolved this dissonance, primarily by changing her beliefs about mentoring and shifting from a nondirective to an eclectic platform. We conclude that the coaching of mentoring explored in this study has considerable potential for future research on the coaching process.