If you have three of your pillars in your strategy failing. All three failing, you must IMMEDIATELY STOP pursuing that strategy, as every day in it, brings you closer to death, to yes, bankruptcy, to oblivion, to complete failure, to junk status as a company, to being a takeover target. If your three pillars in your strategy are failing, you must fire immediately the strategy guy and replace not just the strategy head, but your whole strategy. If every leg of your strategy fails, then yes, ANY new strategy is better. Whatever you did before is better, whatever your competitors are doing is better, anything is better than pursuing a strategy that is 100% failing.
The CEO who executed a strategy where all three legs fail, is clearly incompetent, and must be fired immediately. If the Board waits, then the Board is either asleep at the wheel, or incompetent, or in collusion with the incompetent CEO. If the Board waits in firing the CEO of a company where the whole strategy is failing - that Board must be fired instantly as well. This is elementary stuff. A company that finds its three pillars of its strategy all failing, is shrinking in size, is losing customers, is losing market share, is losing consumer and investor confidence, finds its share price rated junk, and is obviously generating increasing losses. This company is at least on the brink of bankruptcy and depending on how much cash it has on hand, it may prolong its life a little, but as long as the company pursues a 100% failing strategy - the company will kill itself.
Very good article on why Nokia is failing, and how the board is allowing CEO Stephen Elop to do it.