i think they r relying fully on their batting, which is not doing too well at the moment. even if they score 180 or 200, they dont have the bowlers to defend the total.and in 20-20, my feeling is that the team who wins shud have 3~4 good bowlers. Teams like Delhi,Chennai,Kolkatta and even Bangalore have good bowlers to back up their batsmen.But this is an area where the Chargers are lacking and this may prove quite costly for them.