It used to be true that to get ahead at work, you needed to develop skill, knowledge and expertise that no one else had. This magic formula would save you from getting fired or laid off and be key in moving up the career ladder. Since no one else knew what you knew and no one else could do what you could do, you were a key employee ! Here is the main reason!
Today’s organizations are flatter than ever. Your boss today may not be your boss tomorrow. If you are seen as an expert across all sections and levels of the organization, you will have more access to opportunities and a better chance of being retained by any one part of the organization.
I was lucky enough to become known as an expert due to an assignment that required me to develop new life style concepts across multiple areas of the group. In that position, I implemented new standard , which I taught, to help others understand that my visions and concepts . After developing several people across the group my name got out there as a go to person on the concepts . This caused me to be drafted to present future projects and assist with boss new visions Since the group vice president often attended the presentations, he heard my presentations and ideas. Having upper management ( ownership)see you doing something right and pleasing the group never hurts!
If you aren’t forced to develop special expertise, you can do it by finding something on which to focus in your work responsibility area. Then you can take steps to learn about it by subscribing to periodicals and websites that focus on it, reading books, or by picking a mentor in that expert area from whom to learn.