Valve has a concept of T-shaped people. You have a broad range of skills and you have one domain that you know really well. Know 8-12 languages, by good with 2.

Valve has a concept of T-shaped people. You have a broad range of skills and you have one domain that you know really well. Know 8-12 languages, by good with 2. Similarly, if you are marketing guy knowing what EBITA is may help you.