New Zealand wicketkeeper-batsman Brendon McCullum has replaced Sourav Ganguly as skipper of the Kolkata Knight Riders for their first match.According to reports received here, McCullum will lead the side for the initial games. The Knight Riders team management, however, will make the news official later on Friday.Ganguly, who led the team in the first IPL season, and West Indies captain Chris Gayle have been given the role of senior management in the team. The decision to appoint McCullum in place of Ganguly seems to be a part of the multi-captain theory proposed by coach John Buchanan, which was opposed by Ganguly.Buchanan had proposed rotating the captaincy among Ganguly, McCullum, Chris Gayle and Lakshmi Ratan Shukla, which created quite a furore.It is unclear when Ganguly will be made the captain and whether other players in the side will also be given a chance to captain the side during the IPL.The multi-captaincy theory had been met with a mixed response. Ganguly fans though will be very disappointed with this decision.Ganguly is the third captain to have lost captaincy after the first season. VVS Laxman was the first to go when Deccan Chargers made Adam Gilchrist the skipper and then Rahul Dravid made way for Kevin Pietersen at Bangalore Royal Challengers.