jacky rooster has it all down - I would like to say for the record that after I'd won with 4 teams I tried the rest with two controllers, I can assure you it doesn't work, which frankly is a great pity.
The game itself is OK, this is just a terrible, dull achievement. Most important thing is to field, always field, you won't get them out in 6 overs but you are likely to chase down the total within an over against the weak teams, therefore saving valuable time. Also don't try to take wickets - try and get the batsman's confidence down and he won't be able to score, and then you can bowl the normal 'green dot' line and get the keep to take it, which again is quicker than the slips.
For the record the achievement doesn't pop on the screen where your team is celebrating with the trophy, it is on the next screen when you have the static image of the trophy which says 'congratulations, you've won the trophy' etc etc.