Innovation III:  The "Innovator's Dilemma".
     No company or individual is entirely immune from the Innovator's Dilemma.  We might say that success carries within it the seeds of decline.

There are two useful perspectives on why this is:

Richard Hamming: "When you are [successful] it is hard to work on [so-called] small problems. [You] try [instead] to get the big thing right off.  [And you] fail to continue to plant the little acorns from which the mighty oak trees grow."   [1]@Bell Labs, You & Your Research

James Whittacker:  "Successful companies become beholden to the products that made them successful. There is feature iteration, maintenance, operations, support... Being successful signs you up to a profitable business rhythm where [further] innovation plays, frankly, an optional role."  [2]@Google,@ Microsoft, http://bit.ly/1fWOYa1

An anti-dote?   Keep the simple questions fresh.  And don't stop working on fundamentals.