Rohit at 3? Now I want whatever you are smoking
I did say it might sound crazy but given that he usually starts slowly, can rotate strike quite decently and then doesn't care about the number of fielders once set, it isn't the worst idea. Worries over it would be his weakness to quality wrist spin and the fact that he likes the hard new ball but if you were to give me the potential chance of a 2016 Kohli playing as the opener, I would take that anytime of the week even if it means accommodating Rohit at three. Plus he does have an IPL century at three and two international fifties on both occasions he's played there.
He is truly a conundrum. Does not have the best of form in the IPL even in comparison to one Shikhar Dhawan but always manages to look much better for India. Can be guilty of not utilizing the powerplay in a strong fashion sometimes and does frequently let you down with early dismissals but if he fires, he usually leads you to a match-winning state often on his own. I'm not even kidding here, there has been only two occasions since 2018 where he has failed to score at least 50 after crossing 30. He has 13 such instances of 30+ scores in 39 games. 9 times he has got out after posting double digits. Only three of those have been 20+. This does correspond to what everyone tells about him of 'let him play and he will win you one game per series on his own'.