What path does B. Alan Wallace teach?

I am long time student of Chogyam Trungpa. Unfortunately, the current situation at the sangha (now Shambhala International) is in a state of chaos. I am interested in becoming B. Alan Wallace's student. I'm wondering if his path is similar to Vajradhatu, in other words, start with shamatha/vipassana, then ngondro, and then abhiseka. Thank you