Clark Haggans is a career quality starter — a linebacker whose body of work places Haggans in the top half of all players at the position historically. The Knox model values sustained contribution over flash, and Haggans's career arc reflects exactly that kind of reliable professional-grade performance.
Reached 24% of the all-time Sacks leader — a rotational/depth all-time profile at the position.
A 0–100 scale where 100 = matched the all-time leaderat this position. Built only from visible encyclopedia data — career production vs. the all-time leader, plus efficiency (EPA) and comparable-player confidence — so it's a transparent context score, not a subjective rating. Tiers: Elite ≥ 85 · Strong ≥ 65 · Solid ≥ 45 · Depth < 45. Comparable-player confidence: 88%.
Career Value · VORP
46 career value over replacement — #2160 all-time of 4,649. 4.6/season above a replacement-level LB.
Pick #137 (Rd 5) · PIT · 2000 · +22.4 vs expected KV-H
Fan Rating
Rate Clark Haggans — All-Time
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StatVault aggregates multiple open-licensed and proprietary sources into a single profile. The depth indicator above shows which layers are available for this player.
Pre-1999 players have bio + draft data but counting stats are not available from any freely-licensed source. Players with ★ Career Only see verified career aggregates from nflverse draft_picks.
Amber = this player (normalized to own peak). Indigo = average linebackers aging curve. Group peak age: 32. Source: StatVault KV-H era (1999+).
Percentiles compare each raw measurement against position peers, the full combine pool, and the same draft class where enough samples exist.
Defense
Proprietary StatVault Metrics
College stats are not imported for this profile yet.
StatVault has the verified college attribution (Colorado State), but no parsed college box-score table is present in this profile artifact. The section stays here so every profile has a consistent college-stats landing point without fabricating unavailable rows.
Career teammates and draft class, derived from year-by-year rosters — every name is linked.
Clark inherited the Pittsburgh Steelers LB room from Kendrell Bell (2001–2004), and handed it to James Farrior (2002–2011).
Clark inherited the Arizona Cardinals LB room from Chike Okeafor (2005–2009), and handed it to Paris Lenon (2010–2012).
The room is reconstructed from arrival order among durable members (≥4 seasons with the club) at the player’s position group — a lineage by arrival, not a week-by-week depth chart. Distinct from the league-wide positional GOAT torch.
Statistical + physical similarity across every player in the database, position-relevant (0–100%).
Joined SF (from ARI)
Last recorded season with SF
Joined ARI (from PIT)
Drafted by PIT — Round 5, Pick 137
From nflverse weekly injury reports · coverage begins 2009.
| Season | Team | Games Out | Designations |
|---|---|---|---|
| 2012 | SF | 0 | W16Questionable· ShoulderW17Questionable· Shoulder |
| 2010 | ARI | 0 | W8Doubtful· GroinW9Doubtful· GroinW10Questionable· GroinW11Questionable· GroinW12Questionable· GroinW13Questionable· GroinW14Questionable· GroinW15Questionable· GroinW16Questionable· GroinW17Questionable· Groin |
StatVault's proprietary player intelligence, informed by full career data. How Knox works →
Era-normalized career quality — z-scored against 10-season peers. See all →
Career durability — games played vs. scheduled, across 12 seasons.
Composite score across availability, IR frequency, and injury severity. See all →
Tackles translated to the 2025NFL — each season's standing among its own-era peers, projected onto 2025's scoring environment. Modern-era (1999+) coverage.
| Season | Actual Tackles | Tackles/G | → 2025 Tackles | → 2025 /G |
|---|---|---|---|---|
| 2002 | 24 | 1.7 | 0-24 | 0 |
| 2003 | 14 | 2.8 | 22+8 | 1.3 |
| 2004 | 31 | 2.8 | 23-8 | 1.3 |
| 2005 | 52 | 4 | 49-3 | 2.9 |
| 2006 | 60 | 4 | 51-9 | 3 |
| 2007 | 44 | 2.8 | 24-20 | 1.4 |
| 2008 | 15 | 1.9 | 7-8 | 0.4 |
| 2009 | 66 | 4.1 | 56-10 | 3.3 |
| 2010 | 45 | 3.5 | 45 | 2.6 |
| 2011 | 43 | 2.7 | 30-13 | 1.8 |
Data: nflverse:players, nflverse:player_stats_def, nflverse:combine, nflverse:draft_picks, nflverse:injuries · multi-source verified via the StatVault Oracle · updated 7/31/2026
Jeff Posey
LB
85% match
2000 Draft ClassmatesFull class →
Wore 4 distinct franchise crests across 12 seasons (2001–2012) — a true nomad. The crest trail: