Pret A Manger have recently brought back Larry Billett, the former Pret Chairman to tackle the company's £700million debt.The sandwich chain racked up loans and debt worth almost £700million at the end of 2022.In a bid to reduce this figure, the chain this wee brought back Larry Billett, who was Pret’s chairman from 2003 to 2011, alongside Sinclair Beecham who co-founded the business in 1983 with Julian Metcalfe.Current chairman Olivier Goudet …