In comparison to Lieberman, Schlesinger was far too emotional for the debate, and Lamont was not vocal enough. He was even told to think about using more of the allotted seventeen minutes about halfway through the debate.  Schlesinger was practically yelling and scolding Lieberman on stage for saying different things about social security, and he spoke very condescendingly to Ned Lamont about how he did not have the answers to any of the problems he was discussing in reference to illegal immigration and other issues.
In response to Schlesinger's outbursts, Lieberman was able to answer in stride and still look as if he had the best answer even if he did not. Lieberman looked calm, cool, and collected throughout the debate. He did not let Schlesinger's outrageous claims upset him, or throw off his answers. He was able to tie in important facts about his opponents during his answers without sounding like he was scolding them.  And if he did sound like he was scolding them it was more about educating them since he has been a senator for so long. This man is a professional politician, and he is an amazing debater.  
Lieberman did run out of time before all the answers had been asked, and Schlesinger tried to wittingly acknowledge this, but he fell flat on his face in his attempt to make a joke about it.  Ned Lamont’s closing remarks were very strong, but I have a feeling that the body of the debate was not strong enough to win many votes for him. Lieberman did not really address Schlesinger in his closing remarks, which I think shows his belief that Connecticut will continue to vote Democrat for years to come.
In my opinion, Ned Lamont was not much of a challenge to Lieberman because he has a lot of the same political ideals, and Alan Schlesinger was not focused enough on the issues. He focused much more on the answers of the other two debaters than on the questions that were being asked.