Hi,
I think suggetion is good and betterment of the company. You are looking for good about your company.
At the same time, I would like to draw attention that persone who are working at 2nd or 3rd level do not the policy of the top managment [I mean Chairman / President / owner]. If they are not trasperant, 1st level start to work in the same manner.
Second thing is that - Why you would like to take others opnion. Bcz, Wise talk can be talk among the wise people.
Truth is bitter, but there is a many way to tell it. You may fist suggest about suggetion box system. During the discussion you will have to analyse the situation. If you feel that it is easily accepted in positive manner then you may go ahead with out giving your boss name / his position. You will have a opportunity to suggest about Goal, Vision ,etc.
I hope you amy like my idea.