ballgame
new ballgame

"It's a whole new ballgame and it happened so quickly."

Yesterday was - as somebody once said - a whole new ballgame.

"Video cameras make enforcement a whole new ballgame," he said.

"If he does well, we'll have a whole new ballgame."

Is this what people mean by the term a "whole new ballgame"?

"All of a sudden, painting was a whole new ballgame," he said.

"After the decision today, it may be a whole new ballgame," she said.

By this time next year it will be a whole new ballgame.

What we found was, as they say, a whole new ballgame.

"By that time, it could be a whole new ballgame."