Sajid is a 57 year old retail worker who attends for his diabetic review. His latest HbA1c is 64 mmol/mol and his Type 2 Diabetes is poorly controlled despite good compliance with Metformin 2gram daily. His BMI is 30. Past medical history includes previous bladder cancer and Psoriasis and he smokes 5 cigarettes a day.
Which one of the following management options would be most appropriate for him?