How do we stop people leaving when internal promotions keep getting delayed?

Every individual thinks and expects different types of promotions and if they’re denied them for too long motivation and team retention will suffer. But how can you manage promotions in a way that works for both the individual and the business? Advice, experiences and insights from Rajeeb Dey MBE (Founder and CEO of Learnerbly), Charlotte Hamill (COO & Partner at Born Social), April Williams (Founder of Can?Did!, HR & Talent Consultant) and Tom Fraine (Chief People Officer at Bulb).