David Coffey, Iowa State CB: the 2026 season story
David Coffey is a sophomore defensive back for Iowa State (Big 12). He ranks 418th of 1,841 defensive backs in Division I by the Player Index, which judges every defensive back on the measures that matter at the position, adjusted for the opponents he faced.
Scouting report
Why it matters. Every measure is set against every ranked defensive back, so a strength here is a strength against the whole position, not just his own team. David Coffey's strongest measure is passes defended per game at 0.61, 111th of 921 (the average is 0.31). His weakest is interceptions per game at 0.00, 397th of 921 (the average is 0.08).
Season production
Why it matters. Volume is the first sign of how much a coaching staff trusts a player. His tackles per game, 2.8, ranks 625th among 921 ranked defensive backs.
Against every defensive back
Why it matters. Volume, efficiency and impact plays can tell different stories: a player can be busy without being effective, or rarely used but dangerous every time. Among ranked defensive backs he sits, on average, in the 32nd percentile for volume, 61st for efficiency and 44th for impact.
The season, game by game
Why it matters. Consistency matters to a team: one huge game and five quiet ones is a different season from six solid ones. Over 9 games, David Coffey's best came in week 9 against Oklahoma State and his quietest in week 4 against Utah.
Where he does his damage
Why it matters. The shape of a player's production, not just its size, is what opponents scout.
National and conference
Why it matters. The Player Index puts every defensive back on one scale, adjusted for the defenses or offenses he faced, so a rank here is comparable across conferences. David Coffey is 300th of 921 FBS defensive backs and 36th of 103 in the Big 12. Next up nationally is Kayin Lee of Tennessee, 0.00 ahead on the index.
Defensive backs like him
Why it matters. Players with similar profiles tend to be used the same way, which makes them a quick way to picture his game. His closest match this season is Christian Oku of Abilene Christian.
