I expect Siraj to be replaced in the next game and also Shreyas Iyer seems to be a concern in the middle order so why not let KL Rahul to bat at 4 and SKY and Hardik at 5/6 followed by Jaddu. Clearly, SKY made a statement to the team and contributed valuable runs when the team needed the most.
I doubt Shiraj will be replaced, he is one of the most successful bowler that India has produced. Only one bad game can't determine the long term benefits of having him. Sheyas Iyer should be removed, he has been a failure until now. Ishan Kishan should replace him and Hardik if he is fit should replace SKY. The rumour that is coming out in the social media is that he might not be fit for the rest of the matches.
I feel Shreyas should be replaced with Ishan Kishan, I know I backed him up in prior comments but he's been fail in all 6 matches, also Ishan is really good fielder, Gill and he are bros, also!
Sky should stay, imo.
Siraj should go out at least for one game, even if gets few wickets, he tend to be economically expensive. At least a match without him, see how India does, should be replaced with Ashwin or Shardul.
BTW, BCCI the way they conducted the 50 over World Cup looks like is not kneen is having another one,
True, Fielders were digging land in Dharamshala and Lucknow outfield. Is this how you prepare for wc?