It is Christmas 2021; after a period of lockdown, people can finally move about more freely. You are at your new partner's home for Christmas lunch. It is the first time you meet your partner's parents and want to make an impression. During the conversation over lunch, your partner's father finds out that you are majoring in finance at UTS. He asks you to give him an opinion on his self-managed superannuation fund. Currently, he invests some of his SMSF balance with an active fund manager. However, he is disappointed with the active fund manager's performance. He is thinking of switching to another active fund manager or switching his investment to an index fund. What advice would you give him? Please provide a brief explanation of the reasons for your advice