From Adimark: Sebastián Piñera's approval rating remains very low, at 30%. Borrowing a long standing tradition from the Concertación, he has responded to his lack of popularity by changing his cabinet. At least in the Chilean case, presidents tend to think that shuffling the cabinet will be seen as a signal that he/she is acknowledging problems and taking positive action. However, I have never seen any evidence that such signals function as intended. Presidential approval is based largely on other issues, and cabinet changes tend just to generate gossip about who will be running for president in the future.