Domingo - Tenors are what the viola players are to the orchestra. Someone has to be a lightning rod.
Kaufmann - There are more baritones. A really good baritone is therefore just about the best of the best. A tenor can be just a voice and nothing else. As a tenor you can have a career that would probably not be possible for a baritone.
Domingo - If Franco Corelli cancelled Tosca, then Carlo Bergonzi, Richard Tucker, Giacomo Aragall, Sándor Kónya and Luciano Pavarotti were ready to stand in. And what about today when Jonas is sick? I couldn't take over any longer. In Verdi and Puccini in fact I see a desert. So you have to be nice to Jonas and treat him very well.