Just whipped this up...

http://www.flickr.com/photos/frizille/6217286495/in/photostream

The company I work for was suffering from a very high amount of counter-culture and distrust seemed to be everywhere so the managment institutued a self nominated group that could bring issues straight to them. It is entirely self nominating (elected yearly) and employee driven; the agenda in each monthly meeting is developed by the employees and topics are discussed in a very open manner, all management is required to attend every meeting. In the couple of months that I have been on the commitee, I've found that the management is very receptive to ideas, criticisms, and open discussion.

I think it really boils down to what your management is like. Sometimes management is truly interested in making the company a good place to work and it has helped us in the sense that decisions that management has made were explained more in depth as to why those decisions were made. I'd lay out what you think needs to change, why, and how it can be changed. If you bring real world examples to them along with ideas on how to make it better I think they will be very receptive to those ideas. If you approach them with a list of complaints and no forward though on how to correct them then I would not say anything.

Just my 2 cents....