if gayle n mayank open, that will give us a chance to field an all-rounder or a middle order batsman..
but given how destructive both gayle and dilshan are i vote for them
Gayle n virat might be good but again we need a player who can contribute great at no.3 or no.4 , so may be not virat , will go with gayle and why not try pujara ir surabh tiwary, with dilli coming at no.3 or lower based on the team combination