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Woodward was replaced as show runner by Jack Orman.

Orman was recruited as a writer-producer for the series in its fourth season after a successful stint working on CBS's JAG.

He was promoted quickly and became an executive producer and show runner for the series ' seventh season.

He held these roles for three seasons before leaving the series at the end of the ninth season.

Orman was also a frequent writer and directed three episodes of the show.

David Zabel served as the series ' head writer and executive producer in its later seasons.

He initially joined the crew for the eighth season and became an executive producer and show runner for the twelfth season onwards.

Zabel was the series ' most frequent writer, contributing to 41 episodes.

He also made his directing debut on the series.

Christopher Chulack was the series ' most frequent director and worked as a producer on all 15 seasons.

He became an executive producer in the fourth season but occasionally scaled back his involvement in later years to focus on other projects.

Other executive producers include writers Carol Flint, Neal Baer, R. Scott Gemmill, Dee Johnson, Joe Sachs, Lisa Zwerling, and Janine Sherman Barrois.

Several of these writers and producers had extensive background in emergency medicine.

Joe Sachs was a regular emergency attending physician, while Lisa Zwerling and Neal Baer had pediatrics backgrounds.

The series ' crew was recognized with awards for writing, directing, producing, film editing, sound editing, casting, and music.