Typically, a company's strategy is

fine$-$tuned monthly $($occasionally$,$ more often$)$ in order to be as innovative as possible in trying to achieve a sustainable competitive advantage over rivals.

kept relatively unchanged for a year or more; frequent strategy changes confuse customers and cannot be executed with any degree of competence.

a blend of $(1)$ proactive actions to improve the company's financial performance and secure a competitive edge and $(2)$ asneeded reactions to unanticipated developments and fresh market conditions.

a close imitation of the market leader's strategy.

$100$ percent differentiated from the strategies of rival companies; any and all copycat strategy elements must be avoided for a company's strategy to be competitively and financially successful.