Virat Kohli will form a core group 20-25 players for 2019 World Cup. With senior bowlers Umesh Yadav, Ravichandran Ashwin, Ravindra Jadeja and Mohammed Shami all available for selection for the upcoming limited overs segment in India, Virat will be facing some dilemmas in selection. "The best thing is transparency. We will address it and tell them that this is a bunch of 20-25 people, who will make the probable-list for the World Cup and everyone has an equal opportunity to be tested at different stages," Kohli said at the end of the ODI series against Sri Lanka.Flexibility is the key to finding a place in the Indian ODI side were everyone needs to chip in every department. "We need to find an XI that is flexible enough to try different batsmen at different positions or play bowlers who can bat a bit, along with having the best fielding side on the park.