Dear Community, 

I have recently applied at the same time for different open positions in Europe as part of a new program at Mckinsey (general associate, digital associate, technology associate, and data scientist ), my current position is technical, I'm a data scientist with a Ph.D. degree in the same domain and I have experience as a business analyst in non-famous management consulting companies but in national-level projects. I have already taken the problem-solving test and I have received an email in which I will be invited for interview preparation for Mckinsey as part of the program if I get accepted. I needed to choose three locations as my preferred locations, and among my chosen locations, there were countries where I know the language but it is not good enough to use it in the work environment. My question is should I contact HR to change those locations if those are the locations which are going to review my documents and the language barriers probably will be a good reason to get rejected or Should I wait for receiving the result of my acceptance in the program and afterward bring this issue with HR? 

Also, I have another question. I know it's not a good idea to apply for different positions at the same time but I was confident at the time of the submission of my application that I am a good fit for all those positions but given some thoughts, I don't want to be a data scientist right now anymore, then should I withdraw my application for this position right now or again It's better to wait to see if I get in the program or not? In case of withdrawing my application for this position, since I have applied through a program, the same role of 2-years ban will be applied in my case or not?

Thank you very much in advance for your consideration, time and reply.