I was helping a client last year after working with the departmental transformation leader who was sceptical about how the lean and agile approaches can help the department to improve. He set me a challenge to work with one of their teams.
I didn't know that he picked their most agile team and the director of that team had even less interest in engaging and learning as he was very successful and his team was too. This reminded me of Chris Argyris work and this HBR article Teaching Smart People How To Learn.
I interviewed the people in his team face to face and over the phone as we were geographically dispersed across three different time zones. This team developed analysis engine. During the interviews, the code review kept coming up as a key source of dissatisfaction.