I agree with you that in order to establish credibility in the workplace, everyone should be respectful, communication is very important and assignments should be submitted on time. Everyone should be doing all of these and then some to make sure that the workplace is in order and that way they can establish credibility. Establishing credibility in the workplace is very critical and the company and manager should be able to trust the staff. If no one is doing their job correctly or showing up to work late, not submitting assignments in a timely manner or sloppy with work then there is no credibility