In his $2012$ book, $$There is an I in Team', Mark De Rond finds that people are self$-$interested no matter how much leaders try to inspire them to a cause. Rather than ignore this fact, De Rond believes leaders should embrace and learn to deal with it$.$ If that$$s the case the best thing for leaders to do to try to achieve goals is:

Remove people who cannot work well within teams and allow them to work independently to achieve expected results.

Try to manage a sense of commitment amongst team members.

Build a strong performance ethic within the organization.

Encourage team members to face one another when they communicate.

Recruit based on recent prior performance rather than character.