Came across this posting from a Microsoft employee.
Most notable are:
- understand how your company makes money
- being an "individual contributor" doesn't cut it
- while executing, brainstorming/asking questions/challenging hurts
- have your boss champion you
- grow horizontally
- be a "go to guy"
- stand out from the crowd
These are practical advices on how to jump from an average, albeit important, employee to a "the one", indispensable employee. I found these very realistic and agree with most of them.