UPDATE: Now you can add workers to a column and see if it helps getting work done faster. Try experimenting with the numbers and get the best configuration!
While reading blogs about Agile games, I came across this link of Karl Scotland.
Because I always like combining programming with building something that gets across Agile principles (our Battleship game is also a good example) this seemed like a good new project for our Fridays at Zilverline HQ. Bob Forma and me started this and within a few days we came up with this (You can check the source code here)