Jane Fraser wants to change Citi's culture. Here's how 5 top execs are tackling the call to be 'relentless.' Citi hosted its investor day presentation on May 7. Bloomberg/Getty Images Citi's new winning identity was on full display at Thursday's investor day. Executives were asked how they plan to change Citi's culture for everyday employees. Some talked about keeping an eye on dashboards, and others about shifting mindsets. When Jane Fraser took over as CEO of Citi in 2021, she vowed to modernize and overhaul the bank, heralding in an era of leadership changes, layoffs, and a much-needed winner's mindset. Now, with the firm's sweeping transformation project more than 90% complete, top executives had to answer for how they're turning the promised culture shift into a reality for Citi's more than 200,000 employees.…