 While Lemass concentrated on economic matters, de Valera focused primarily on constitutional affairs, leading to the passage of the new Constitution of Ireland in 1937.De Valera became Taoiseach, while Lemass served in the new Government (the new name for the cabinet) again as Minister for Industry and Commerce.Subsequently, Irish economic historians have found that many of his decisions on tariffs and licences were made on an ad-hoc basis, with little coherent policy and forward planning.