what's wrong with being no.2 ?

It is 1979, a basketball game in the Brandeis gym. The team is doing well, and the student section begins a chant,"We're number one!" Morrie is sitting nearby. He is puzzled by the cheer, At one point, in the midst of "We're number one!" he rises and yells, " What's wrong with being number two?"
The students look at him. They stop chanting. He sits down, smiling and triumphant.