這裡是YAHOO 規則:

In a Head-to-Head League, your team will square off in a weekly matchup against another manager's to see who can compile the best stats across a number of different categories.

A new weekly matchup begins every Monday and will consist of a set number of games based on your league's statistical categories. Each stat category counts as one game, with the win going to the team that finishes the week with the highest total in that category (the cumulative total after each Sunday's games).

請看: your team will square off in a weekly matchup ,每隊陣容是每周固定的.

A new weekly matchup begins every Monday 同樣說是WEEKLY.

我們LEAGUE允許每天改陣容,但每天改動ALL APPLY TO THE COMING WEEK.就想SALARY CAP FOOTBALL.

當然.改動是必要的, 打球場次多的有ADVANTAGE.