Sachin should retire??????

Do you think sachin tendulkar should retire??? I was reading today's TOI n on the front page is a comment by Ian chappel ( Yeah!! that's rite, our indian team coach greg's brother ) saying its high time that sachin should retire.. Is it so?? should he retire?? or is everybody just cross with him coz of india's dismal ( well, that's a euphemism!!! ) performance in the 'world cup'.. ?????????? I m confused thinking about all this...