 While mastermind of a clandestine military, he remained a public figure.When official head of the Free State government, he continued to cooperate in the IRA's secret operations.He was capable of bold, decisive actions on his own authority, which caused friction with his colleagues, such as his falling out with Cathal Brugha; but at critical junctures he could also bow to majority decisions which were profoundly disadvantageous and dangerous to his own interests (such as his appointment to the Treaty negotiating team).