As someone who is already a management consultant, you have many advantages.
- You should be good at structuring and incorporating more realistic issues into your issue tree
- You are able to speak about relevant work experience examples for PEI
- You have gone through the process once already so should be able to pick it up quicker the second time around
In terms of how to prepare
- Give yourself time - a consulting job is hectic, I imagine you dont have time to prepare regularly so make sure you have sufficient weeks before your first round
- Understand your strenghts and weaknesses - quickly narrow down what you need to focus on so that you can be targeted in how you focus your time. This is where a coach can be very helpful
- Do not neglect PEI. Especially at McKinsey there is a lot of emphasis on the quality of stories and the structure in how you communicate them
All the best,
Udayan