You could have the world’s best design, but if you don’t know how to explain the problem being addressed and the reason for your design decisions, the design will never get approved. Context is king when it comes to pitching your idea or concept to others.
This is something that is very important to me and a major part of being in a creative profession. I always make it a priority to learn new skills (software, leadership, dev languages, etc.) — whatever I need to continue to grow as a designer.