Co-ed EP rules

Question
If I use the EP, can I substitute players on defense?

Answer
Even though this isn't a fast pitch question, the EP works the same.  Simply put you have 10 offensive players in the line-up.  Any 9 of those 10 can play defense and it is not a substitution.  Of course if you are talking slow pitch the numbers are 10 and 11 not 9 and 10.

Tom