When the Golden State Warriors fired assistant coach Darren Erman, no specific reason was announced but the violation was said to be egregious. Erman had reportedly violated company policy and was let go earlier this month.

Now, we know exactly why.

According to a report by ESPN’s Chris Broussard, Erman was fired for secretly recording conversations between the players and coaching staff. A source described to Broussard that Erman was taping “everything,” even informal conversations. He would sometimes not even be in the room, leaving his cell phone behind recording the conversation.

The other coaches caught on to Erman’s behavior in March, according to the report. However, head coach Mark Jackson kept him on the staff for a week after finding out.

Erman was the No.3 assistant on Jackson’s coaching staff and had been with the Warriors for the past three seasons. He previously worked as an assistant with the Celtics, and recently returned to the Celtics after his firing.

Erman was not the only Warriors assistant to be let go this season. Brian Scalabrine was reassigned after clashing with Jackson and rest of the coaching staff. Broussard reports that he would avoid his coworkers and at one point went five weeks without speaking to Jackson.

Whether all of this is true or not, it just adds more to the notion that Jackson is not in control of his team and his job may be in jeopardy.