Paddy Cosgrave standing down as chief executive of Web Summit was mere “window dressing” to “buy time” for his return — and “nobody is buying” it, the minority shareholders in the business wrote to the board last month. In a joint email dated November 2, 19 per cent stakeholders David Kelly and Daire Hickey argued that despite his resignation, it appeared that majority shareholder Cograve was still “calling the shots” at the tech events company, new court filings show. Cosgrave was replaced as CEO at short notice by Katherine Maher following a controversy over his tweets on the Israel-Gaza conflict…