The film maker already seems in control of his camera and his material.

The young author seems not yet in full control of his material.

Happily, as the book gathers steam, Klein gains control of his material.

Let it be said that Mr. Fleishman's control of his material is magisterial.

On the whole, however, Holleran remains in perfect control of his material.

Mr. Garland is impressively in control of his material.

It strives to ensure directors retain control of their material, and protect them from bad working practices.

In order to write such a compelling novel, Golding needed to be very much in control of his material.

He gained less creative control of his material, and his singles peaked in gradually lower chart positions.

Ms. Shields' control of her material isn't always so virtuosic, however.