"Make it, take it" rule in effect tomorrow at Probowl as a test. (Onside kick alternative)

I have an idea on how to improve player safety. Make them wear flags and plays end when a flag is pulled off of the ball carrier instead of down by contact. Oh and better get rid of blocking too, it exposes players on both sides to too much risk. And eliminate defensive backs since a lot of injuries happen in the secondary during pass coverage.