The present global trend of development is guided and directed by sustainability-based principles (sustainable development). The country's present educational system and curriculum was last redesigned to help the country attain MDGs by 2020. The laudable effort has been fraught with challenges of teachers not being able to implement the curriculum effectively due to their expertise levels in line with the curriculum's delivery. The paper's position is that the inability to plan for innovation in the teacher training system within the country could be the reason for the teacher's inadequacies concerning the present curriculum. It is based on this that this paper proposes an innovative teacher training model. The SDGs are stated, reports from researchers' findings concerning teachers' inadequacies are discussed before the innovative teacher training model is proposed. Afterwards, conclusion is reached and suggestions are put forward.