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Steve Spagnuolo

American football player and coach

Correspondence, annotated notebooks and portrait silhouettes prepared for research
People and ideasInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 26, 2026
Entity authorityQ938916
Source-derived summary

Stephen Christopher Spagnuolo ( spag-NOH-loh; born December 21, 1959) is an American professional football coach who is the defensive coordinator for the Kansas City Chiefs of the National Football League (NFL). Nicknamed "Spags", Spagnuolo started his NFL coaching career with Andy Reid and the Philadelphia Eagles from 1999 to 2006, and as a defensive coordinator he has coached four top-10 defenses in terms of yardage. He has participated in seven Super Bowls, six as a defense coordinator and in Super Bowl XXXIX as a linebackers coach, winning one with the New York Giants and three with the Kansas City Chiefs. He is the only coordinator (offense or defense) in NFL history to win a Super Bowl with two different franchises and the only one to win four Super Bowls in that role. Some historic defenses that Spagnuolo has coached throughout his career include the 2007 New York Giants defense that defeated the undefeated New England Patriots in Super Bowl XLII and the current Kansas City Chiefs defense.

Following two seasons in New York, he became the head coach of the St. Louis Rams for three seasons, was an assistant with the Baltimore Ravens, had a one-season stint with the New Orleans Saints, and then returned to the Giants as defensive coordinator in 2015. He was named interim head coach after the firing of former head coach Ben McAdoo on December 4, 2017, before rejoining Reid with the Kansas City Chiefs in 2019.

Spagnuolo has also worked as a college football assistant coach for the University of Connecticut, the University of Maine, Lafayette College, Rutgers University, Bowling Green University, and the University of Massachusetts Amherst. He also spent time in the original World League of American Football and its successor, NFL Europe.

Editorial summary

“Steve Spagnuolo” enters the record as american football player and coach. Crown Archives preserves that source wording while asking what Steve, Spagnuolo and American can confirm, complicate or overturn.

Editorial reviewA useful biographical orientation record, particularly for establishing names, roles and a first chronology. The current lead gives the account dated anchors—1959, 1999, 2006, 2007—that can be checked directly. The linked authority record independently contributes the date 1959-12-21. Its strongest next move is a source search built around Steve, Spagnuolo and American.
Editorial analysis

Why this record matters

“Steve Spagnuolo” is worth following because a concise public description often conceals a longer documentary argument. Here, Steve, Spagnuolo and American provides the most credible route into that argument.

Evidence profile

The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Jul 26, 2026. The linked authority identifier is Q938916. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1959, 1999, 2006 and 2007.

Critical limits

Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
Verify next

Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Steve Spagnuolo”, its source revision and the description used here.
  2. Expand the search: follow Steve Spagnuolo primary sources, Steve Spagnuolo archive and Steve research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Steve Spagnuolo”?
  2. How has the subject’s reputation changed across later accounts?
  3. Which claims depend on a single source or contested interpretation?
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Source & attribution

This entry incorporates text from Steve Spagnuolo” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.