Maybe because he's a bit too aggressive as captain (sreesanth-ish), and is a short time option (retirement, droppage) He isn't the fittest person off late either.
He tore a muscle from a throw!
Still, India's greatest captain is the one and only Dada.
No.. that is not the only reason..
Check the records of him.. He is the only one who succeeded to make india victorious more percentage ( I mean a good percentage)..