there's a misconception that batters are more imp than bowlers in T20, but just think for a min,... all u need in T20 is slogging right...if 11 mediocre players start slogging, surely couple of them will click and thats what u need in T20....just 3-4 players scoring runs, which anyone can given the nature of game.....even a bowler can have a gr8 day and score quick runs...
but its not the case bowlers, u need quality bowling attack to bowl yorkers consistently...there's nothing much a batter can do when he has to face yorkers consistently... thats why a team with good bowlers will win inspite of an avg batting lineup in T20....