Being brought in at a lower grade is fairly usual in consulting. The employer is taking a bet on you living up to what you told them about your abilities. PA are usually pretty quick about promoting people, up until PC level.It's usual to ask to speak to current employees at your own level to talk through your concerns on a confidential basis. Why not call the HR contact, and ask them to tee something up ? Its not an unreasonable request, and from PA's perspective they don't want you to leave disappointed in two / three months.Best of luck: PA are a fantastic organisation with a great culture.