To be successful, a company’s leaders must apply the relentless focus and commitment necessary to build the required culture and must serve as role models for the required behaviors. In the end, the establishment of a culture is all about how leaders behave and what behaviors they reward and discourage.

Here are four critical actions leaders should take to create a winning culture.

1. Hold yourself accountable.

2. Spell out expectations to the letter.

3. Know when to nourish your employees. 

4. Hone the art of instant feedback.

See the PM magazine article "How to Build Culture Accountability in 2014."