Per a request from one of the managers, I have added the ability to specify the number of games to pick during the week. The default is still 'All Games', so if this is your preference you don't need to do anything.
The setting is an exact number of games; e.g. if the setting is 5, each player must pick exactly 5 games each week. In the case where there are fewer games available to pick than what you set this to, the player will be able to pick up to the number of avaialble games (such as during the playoffs, or in the regular season if the league is set to pick against the spread and too many game's lins are OFF).
Below is the PickEm league setting page showing you where the new setting is.

The Commish
"I want to die peacefully in my sleep like my grandfather, not screaming in terror like his passengers!"