That's excellent! it never occurred to me it could have such a positive effect in a team situation. Empowering the supporting members is very insightful, they may be supporting but they are just as critical, they need to feel appreciation for the value they provide to stay sharp and motivated - I hope this can be applied to other contexts, thanks for sharing this.
If I remember the anecdotes correctly, the focus on nurses wasnt as cheery as this. Basically, the nurses often knew when the surgeon was in the process of making a mistake, up to cutting the wrong leg off a patient, but kept quiet because surgeons had the power to ruin their careers if they "embarressed" them. So the innovation was really about forcing surgeons to not terrify their nurses into silence.
Ouch. This reminds me of the problems nurses faced in the 80s as described in "Pragmatic Thinking and Learning". From that book it made it sounds as thought the issues were mostly historic, I guess there have been a number of different battles fought.