In this study, using mixed methods, we investigated the longer term effects of eCoaching through advanced online bug-in-ear (BIE) technology. Quantitative data on five dependent variables were extracted from 14 participants' electronically archived video files at three points in time--Spring 1 (i.e., baseline, which was the first semester of enrollment without eCoaching feedback), Spring 2 (i.e., 1 year later with eCoaching feedback), and Spring 3 (i.e., 2 years later after exiting the program without eCoaching feedback). Qualitative data were collected by means of interviews with participants regarding their ongoing participation in eCoaching. Quantitative analysis, using repeated-measures ANOVA, confirmed initial improvements in participants' teaching practices and P-12 student engagement generally withstood the test of time. Also, qualitative findings indicated, as time went on, participants had more positive than negative attitudes toward eCoaching through advanced online BIE.