I'll bet there were at least 12 flip flops within the same speech.
Like when he said his Attorney General won't trample the Constitution and then said neither political party should use the Constitution for political purposes.
One thing that was very bad about the speech- Kerry speaks in code word shorthand that only makes sense to the sort of people that populate Democrat internet chat rooms 24/7. Half of what he said wouldn't make sense to 90% of the audience.
If you take the four main speeches - Clinton, Obama, Edwards, Kerry - they were completely uncoordinated and in many places contradictory. The only common thread was that John Kerry served in Vietnam.