answer them both please

KaAthens Ltd,, a diversified business entity having business operations across the globe. The company leadership has just changed as Mr. D. Bandopadhyay handed over the pedals to his son Aditya Bandopadhyay, due to his poor health. Aditya is a highly educated with an engineering degree from IIT, Delhi. However, being very young he is not clear about his role and responsibilities, In your view, what are the responsibilities of Aditya Bandopadhyay as CEO of the company. Suresh Sinha has been recently appointed as the head of a strategic business unit of a large multiproduct company. Advise Mr Sinha about the leadership role to be played by him in execution of strategy