I think you are spot on in your assessment of schools not being set up for teachers to be exposed to good teaching. Way too many initiatives, meetings and meetings about initiatives that get in the way of actually witnessing and being in the presence of good teaching. I always laugh at the amount of time we talk about good teaching or read books about it and how little time we actually see it in action.
As a team leader I will often cancel my meetings and roam the halls stepping in and out of classrooms just to get a feel of what is going on in the building and seeing my co-workers do what they do best. We need to encourage more intentional roaming. :)