Yeah but to be honest, I am saying Rayudu will improve his SR.
The 4 fielder rule really helps you in the later stages.
I have been watching Fawad Alam's innings (not live but in cricinfo) and I have realized that even if batsman are limited, if they stick on, they will get their SR to 80-85 by the end.
Not comparing Fawad with Rayudu.
Raina is always going to do over 100 if he sticks on.
So Rayudu won't be that big a liability if he sticks on.
In the future though, I don't know. If he is not in form, he might use up a lot of balls and get out.