Apple welcomes employees of all political viewpoints, CEO Tim Cook says, and he cares about workers' skills more than beliefs. Cook's statement came during a shareholder meeting in which an attendee said an employee who did not "share the left-wing view" had felt uncomfortable and had been shunned by colleagues.

Defensive back Toni Harris has joined the annals of college football history by becoming the first female skill-position player to sign a letter of intent. Harris, who will play for Central Methodist University in Missouri, wants to be the first woman to play in the NFL.

In honor of Women's History Month, we highlight Harris in this week's poll question: Have we entered a new era of recruiting in college football? Cast your vote below. We will post results Friday.

The key to creating a positive workplace culture is to practice it every day, and this should include open communication in times of change, respectfulness among colleagues and clear accountability guidelines, writes Craig Kamins. "A culture of accountability starts with clear performance standards that apply equally to everyone -- including leaders," writes Kamins.

The intersection of certain skill sets, such as engineering and project management, provides an advantage for people entering salary negotiations, according to research by Randstad North America. Candidates should study salary trends pertinent to their position and geographic location prior to detailing how they improved performance for previous employers, writes Gwen Moran.

FedEx Ground executive Chris Ross says the best leaders have a clear vision that allows employees to contribute and collaborate in making it a success. "Employees need to know how the job that they're performing relates to the success of the team and the company," he says.