Muralitharan looks flat for a change

It doesn't usually happen to the best off-spinner in the game, but Murali has been looking out-of-sorts against the Indians. Some might argue that the dead pitches and the Indian batsmen ability to play spin are the main reasons but you would have to observe that he just isn't spinning the ball. Further, runs are being scored freely of his bowling and his doosra too is yet to account for any major dismissal. What mus be worrying Sangakarra is the fact that he cannot afford to replace a bowler like Murali or the entire nation (SL) might revolt against him. With SL almost set to lose the second test match, what should Sanga do to ensure that Murali is back to his normal self? or should he be brave enough to replace him, sighting an injury to the SL's most popular player.