When I was first starting out as a comedian, I really enjoyed the creative process. How do you sit down and start coming up with material? As a result, there was some greater sense of pressure associated with trying out that material when you finally got a set someplace.
I don't think that I am alone in reaching that conclusion either. So, you take the least experienced comedians and you add the stress of needing to succeed and put them up in front of an audience looking to be entertained. One solution is eliminate the stress. Let the comedians know that it is the effort that counts and no one keeps score in comedy - at least nobody who isn't on a door deal. The other solution I am still working on.