Following a months-long investigation that revealed a toxic workplace culture, Uber needs to make changes – fast. The ride-hailing company’s board has agreed to follow through on the 47 recommendations made in the report from former U.S. Attorney General Eric Holder. For now, Uber is being run by a group of 14 senior executives while CEO Travis Kalanick takes a leave of absence. But creating a healthier environment inside the company and regaining the trust of employees, investors and customers in the approximately 570 cities in which it operates will be a long road. Uber commissioned the report after a former employee complained of sexual harassment in a blog post she published in February. Already, it has fired 20 employees over charges including harassment, discrimination and inappropriate behavior, and agreed to lessen Kalanick’s control over the company when he returns.…