Keep Calm and Debate

The best teacher is experience! 
First, the winner of a debate is one who can convince audience and there are many techniques for reaching this goal. 
Second, confuse audience by boring and academic lectures when you have no answer or ideal plan. A successful plan is the one that is based on a unique and comprehensive idea. Clinton's economy program has a goal and plan without an ingenious idea and innovative. Franklin Roosevelt and Ronald Reagan both had innovative programs for economy. If Clinton's economy plan was a paper or thesis, no researching and scientific journal and professor would accept it because it had no new and innovative solution for issues. 
Third, a wise person refuses to answer to judgment and comments of his rival. New York Times would not be just or neutral judge for Republicans and so Clinton would not be a neutral judge toward Trump. Clinton's trick could entangle Trump and put him in a defensive position while he could easily clarify this fact that she is against him and has no good faith and then undermine validity of her judgments and information without any struggle! 
Fourth, do not give the audience tens of facts in a limited time because no one can get them all but give them five facts and repeat them tens of times. Trump's facts on economy was too many! 
Fifth, it is more convenient to provide a key sentence for every subject at the beginning of the speech, for instance, "peace is hard but war is easy" would be considered a key sentence for an anti-war lecture. Neither Clinton, nor Trump have used it. 
Sixth, shorten your lecture. It is a technique and Clinton finally did it well after many lectures and books that were tiring for Democrats.