Complex sentence: To achieve the first aim, Lumumba figured a comprehensive "Africanization" of the administration, in spite of its risks, would be necessary, though it was too late to enact before independence.
Split into simpler sentences: To achieve the first aim, Lumumba figured a comprehensive "Africanization" of the administration, in spite of its risks, would be necessary. All the same it was too late to enact before independence.