I came across it in this remarkable interview in the "Clearer Thinking" podcast https://podcast.clearerthinking.org/episode/192/david-burns-...
After that I was really curious if his claims about success in therapy were plausible or wildly exaggerated, and my conclusion so far is: it seems he really is legit, but his students aren't able to fully replicate his success, so it seems it's only partially the "TEAM CBT" model, and partially that Dr. Burns is an exceptionally good therapist.