There always seems to be a lack of communication between QA and other departments. In my department, whenever the QA department is testing for certain results, it may take a long time, Often times, moving forward with the process relies on obtaining these results, which delays the manufacturing process further. It also seems that they sometimes have unrealistic expectations when it comes to manufacturing a product. In my company, the QA department is very adamant about receiving samples at specific times. However, if there are any complications during the actual process, it may take longer to get those samples at that time. Unfortunately, they are not very understanding of this. I think if communication were improved, the relationship between QA and other departments would be better.