Rosternomics

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Roger Jongewaard

Mariners

1986–1989 · 4 drafts · 206 picks

Early-Round Selection
+18.8
#24 of 172
rds 1–10, cost-ctrl
Late-Round Value
-22.4
#154 of 172
rds 11+, total career
Total DVOS
+47.8
#30 of 172
+11.94/draft
Hitter DVOS
+59.0
#45 of 172
reliable skill (+0.54)
Career fWAR drafted
157
#47 of 172

Value by position — where the value came from (descriptive)

PosPicksfWARDVOS
OF277 +53.8
P1753 +31.9
IF627 +8.7
C4-0 -3.5

Position from each player's primary MLB fielding spot; never-MLB picks excluded. This table is descriptive, not a skill ranking — per-position DVOS isn't reliable at this granularity (split-half ≈ 0 for P/OF, a small-sample mirage for C). The one reliable position cut is Hitter vs Pitcher: drafting hitters (C/IF/OF) above slot repeats (split-half +0.54, the KPI above), but drafting pitchers above slot does not (≈ 0) — so we rank Hitter DVOS and leave pitcher out.

Top picks — who drove the value

YrOvrPlayerPosfWARExpDVOS
19871Ken Griffey Jr.OF 77.723.4 +54.3
198636Erik HansonP 31.22.8 +28.3
198814Tino Martinez1B 28.75.7 +23.0
198733Dave BurbaP 19.72.8 +16.9
1987448Mike GardinerP 1.80.2 +1.5
1986141Rich DeLuciaP 0.90.8 +0.1
19893Roger SalkeldP 0.511.0 -10.5
19881056Chris HowardC 0.20.1 +0.1

By draft class

YearPicksfWARExpectedDVOS
19862930.8 23.6+7.2
19875598.3 39.4+58.9
19885227.8 20.6+7.2
198970-0.0 25.5-25.5
Total206 157 +47.8

DVOS = Σ (a pick's career fWAR − the expected fWAR for that overall slot), credited to the scouting director SABR lists for that draft. We only attribute years with one unambiguous director on record; years where SABR lists multiple names (handoffs/overlaps) or none are left out, so a director's record here may skip years he was involved in — see the coverage note on the leaderboard. Single drafts are noise-dominated — one star swamps a class — so read the multi-year totals, not any one year. Full method on the DVOS page.