As the title says, I would appreciate if someone, preferably who has worked at one of these firms for a few years, could take some time to explain the different divisions within the Big 4 firms, with a focus on Investment Banking / M&A. I have read a few threads on WSO and also on other sites but I am struggling to understand the nuances of the way the firms are structured (e.g. difference between TAS or TS and Corporate Finance). I have a friend who works in Advisory at PwC and he travels every single week to San Fran because he was staffed there. Is this the case for analysts in the M&A / CF division as well? Or is it strictly for the Consulting side of the firm? I probably sound extremely clueless about all of this, and to be honest, I am. I have never taken the time to properly research these firms.
Your help be very helpful since I have a few contacts at various Big 4 firms I intend to leverage, and I'd like to understand the structure a bit better in order to not sound like I don't know anything during informational chats. I have a few lined up within a week's time and thus would love a crash course on the main things to know about Big 4 M&A.
Thanks in advance