you shouldn't 'chase the algorithm', as you will always be one step behind and only ever close the gap on competitors.  This same theory can be applied here.  With this linear programming method for selecting a fantasy football team, it only considers past data and the team will always be the 'optimal team last week'. Therefore more accurate models could be produced which consider more factors such as each team's next opponent and other players influence which are not in the selected team. I will write a follow up blog at the end of the season to see how the team performs after making the weekly transfers.  I hope this has been interesting and useful in uncovering an area of Excel which you may have been unaware of.  The performance of 'Crying Lightning' in the iCrossing league just goes to show that it's difficult to model football performance on mathematical formulas.  However, I believe this actually just highlights the exceptional standard of fantasy football here at iCrossing.