Jack Welch, speaking Wednesday to students at Sacred Heart University in Fairfield, put the blame for American schools&#039; failure to perform squarely on the teachers unions.

Calling teacher tenure &quot;the dumbest idea in the world,&quot; Welch said, &quot;Until we get a school system where it&#039;s all about the students and not about the faculty, there won&#039;t be a ballgame.&quot;