For girls'/women's lacrosse:

1) institute a shot clock to prevent the stall

2) better utilize the held flag so that there are fewer occurrences of a shot leading to a goal which is then called back and reset for a free position

3) allow only 6 players between the restraining line on draws until possession is gained by one team

4) keep track of player and team fouls better (refs or scorekeepers) so that more cards are issued for "repeated major fouls"

5) require scoring shooter to immediately drop their stick at all levels

6) require player ID cards with birthdate (issued by local USL chapters to make it more manageable)