Virender Sehwag's lack of form has become a cause of concern for the Indian team management who are looking to find the perfect combination for the side despite sailing in the super 8 stage. The return to form of Harbhajan Singh, Piyush Chawla and Rohit Sharma has left MS Dhoni with a problem of plenty ahead of the Super 8's, and it would not be an easy call for the captain to make.