Its better to promote Sachin to open along with Jaffer and Dravid to come in at No.3 followed by Ganguly,Laxman,Yuvi and Dhoni.Laxman and Yuvi's position should be interchangeable depending on the left-right combination. Dinesh karthick is a good wicketkeeper and will be the standby for Dhoni.With Sachin in the present form he can perform the role of sheet anchor and be aggressive when needed.
