1. replace it with others already existing
  2. These new ones must have capabilities to compete in other fields
    practical, and not a direct way 

  3. create a new one more excellent
    a direct way, to compete in the same field
    may cost more time, more resources
  4. destroy it
  5. That is the least priority, to destroy may make more opponents for yourself

Prepare to run away if all above 3 is not valid.