A New Force on Broadway, and Perhaps a Changing of the Guard.

Ushering in a new generation of Broadway power brokers, Jordan Roth, a 33-year-old producer, finalized a deal on Tuesday to buy a stake in and to lead Jujamcyn Theaters, one of the theater district's biggest landlords. ''I am a different person than we've had in this kind of position in our business,'' said Mr. Roth, who will take the title of president. ''Let's just state the obvious: my age provides for a different perspective, a different way of looking at the world.'' [ABSTRACT FROM PUBLISHER]