By Charlie Conchie The City watchdog is under pressure to punish more bosses for flouting its rules after new figures revealed it had closed only half the investigations opened over the past seven years. Under the watchdog’s senior manager’s regime, introduced in 2016 in response to the financial crisis, staff in positions of power at financial services firms must prove they are “fit and proper” to perform their roles and pass a test annually. Managers found to be breaching those rules can be barred from performing serving at regulated firms. However, despite opening 68 investigations since 20…