My plan for making soccer more interesting:
Assign a sniper for each team. Give him three bullets.
Allow them to roam anywhere in the stadium. They can shoot any player on the field, but cannot shoot the other sniper.
Players would move faster.
And eventually the sport would die our completely.
I read a book based on that premise years ago...it was football, but played on the streets of our decaying cities. Each team had a sniper with one bullet. Quarterback had to be VERY CAREFUL to look up with his eyes instead of his entire head. Expose your throat, and BANG! Time for that back up quarterback... :-)