In 2014, when Ronan Campbell considered taking over DesignYard from Gerry Crosbie, he had already opened three jewellery shops – both alone and in partnership with others. Despite previous challenging experiences, his wife told him that he would be mad not to jump at the opportunity to take on DesignYard – a business with a considerable reputation as a destination store for good design. “Having worked in asset finance for Bank of Scotland straight out of school, my first foray into the business was opening a shop in Citywest on my own as the original partnership fell through at the…