Andrew Samonsky is horrifically bad Oh, he is not. People throw that term around so easily. If he were "horrifically bad" he never would have been cast. Bartlet Sher didn't put together a beautiful production only to fill it with "horrifically bad" actors.
I never got to see Morrison in the role so I can't compare the two but I did not find Samonsky's performace to be "horrifically bad".
I find his speaking voice to be fairly put upon but I wouldn't label the entire performance as "horrifically bad" just because of that. I even stopped noticing his speaking voice as the show went all. He has a great singing voice. He's kind of "skinny" compared to Morrison but he gives a decent performance.
"All our dreams can come true -- if we have the courage to pursue them." -- Walt Disney
We must have different Gods. My God said "do to others what you would have them do to you". Your God seems to have said "My Way or the Highway".