Being flexible and adaptable to change are the two most essential skill sets to being a successful GM. The process could be running well for most of your shift and all of a sudden something could change which requires your immediate attention. You may have several people calling you at once, and you will need to prioritize which tasks are the most time-sensitive and critical. That skill comes with time and learning how the process works, but work prioritization is important to develop. You have to be willing to meet with new people, work with employees 20-30 years older than you and ask for help from them, and be the middle man between management and union employees. It can be overwhelming at first, but the time you take to get to know who you are working with on a personal level, the easier it will be to come to them when you need help. Your training will involve understanding the brewing process through the eyes of the brewers, which helps you know who they are and become familiar with what they most often need from a Group Manager. Soft Skills are more essential than Technical Knowledge in most cases.