Related:

• Don't be irreplaceable. If you can't be replaced, you cannot be promoted.
• Don't be irreplaceable, if you can't be replaced, you can't be promoted.
• You can be replaced by this computer.
• You can be replaced by a machine that flushes.
• If you're so competent that you are irreplaceable, you won't be promoted. -- Node's Law of Stasi
• Those who can, do. Those who can't, get promoted to management.
• If I can, can you?
• You can see farther into a millstone than he.
  -- Miguel de Cervantes (1547-1616) -- Don Quixote, Part ii, Book iii, Chap xxviii...