Rosternomics
Justin Hollander

Justin Hollander

★ active

General manager for the Mariners (2023–present).

Across the full 4-season sample, the measured profile stands out most for cheap-talent surplus (96th percentile), playoff leverage per acquired WAR (94th percentile), and roster depth (89th percentile). The clearest contrast is cost per win (25th percentile): the measured clubs have paid more per unit of positive WAR than most peers. Because the sample covers fewer than five seasons, those comparisons are descriptive rather than stable.

4 seasons with salary-era data across 1 stint. All figures are franchise-level outcomes during the tenure, not solely attributable to one executive.

0 pennants · 1 playoff appearance · 327–297 (0.524)

Percentile Rankings

vs. execs with toyrs exp.
PoorAverageGreat
Trade Decision Quality
Roster Construction
Depth
8.2
Dead WAR
-4.4
Dead money %
32%
PoorAverageGreat
Talent Creation
Cheap-talent surplus
$61M
Drafted surplus
$24M
Traded-for surplus
$7M
Int'l surplus
$0M
Results & Efficiency
GM WAR
+3.6
TAB
+21.0
WAB
+16.1
$ / WAR
$3.4M
Net WAR/trade
+0.14

Overview

TeamRoleYear Pay
$M
Rel
Pay
Surp
$M
Surp
WAR
Dead
%
Cheap
$M
Draft
$M
Trd
$M
Int'l
$M
$ /
WAR
WAR Depth Dead
WAR
HG Trade Net/
Trd
FA R5 RFA PPA CPA WAB TAB W-L% POPenWS
Mariners GM 2023 88–74 $134 87 +48 +12.2 38% +77 +26 +12 +0 $2.7M 45.8 8.0 -4.5 +19.5 +3.8 +0.43 -2.5 +0.0 +0.18 6.31 0.67 +7.8 +13.3 0.543
Mariners GM 2024 85–77 $141 87 +17 +4.2 47% +80 +34 +9 +0 $3.4M 38.0 10.0 -3.4 +0.1 +1.4 +0.13 +1.7 +0.0 +0.62 2.58 0.21 +4.8 +5.4 0.525
Mariners GM 2025 90–72 $141 91 +20 +5.0 27% +63 +36 +5 +0 $3.1M 41.2 9.0 -4.6 +1.6 -0.4 -0.05 -4.6 +0.0 +0.62 7.10 0.50 +9.3 +8.1 0.556
Mariners GM 2026 64–74 $160 99 -39 -8.0 17% +23 -2 +1 +0 $5.4M 24.2 6.0 -5.2 +0.0 -0.2 -0.04 +0.0 +0.0 -0.33 0.83 0.12 -5.7 -5.8 0.464
Career total (1985+ data) $576 91 +47 +13.4 32% +61 +24 +7 +0 $3.4M 149.2 8.2 -4.4 +21.2 +4.6 +0.14 -5.3 +0.0 +0.39 3.99 0.37 +16.1 +21.0 0.524 1

Roster Construction

How the roster was sourced

Share of acquired fWAR by channel vs. league average.

Build channels — net fWAR

Acquired minus surrendered / signed minus walked.

Home-grown (draft/intl)+21.2
Trade+4.6
Free agency-5.3
Rule 5 / minor draft+0.0
Sourcing mix: 64% draft · 7% FA · 30% trade · 0% R5

Trades

Trades made — 0 deals credited to Justin Hollander, best expected value first; surplus is realized value in $M

No graded trades on record for this executive.

Players acquired — 71 players, by realized fWAR for the franchise (scroll for more)

PlayerPosTeam How Year Szns fWAR WAR/yr RFA PPA CPA
Bryan Woo P SEA Draft 2023 4 +9.8 +2.4
Randy Arozarena OF SEA Trade 2024 3 +7.8 +2.6 +0.40 2.4% 0.20%
Bryce Miller P SEA Draft 2023 4 +5.5 +1.4
Dominic Canzone DH/OF SEA Trade 2023 3 +3.6 +1.2 +7.23
Josh Rojas 2B/3B SEA Trade 2023 2 +2.9 +1.4 +7.23 6.7% 0.72%
Luke Raley OF SEA Trade 2024 3 +2.7 +0.9 -0.91 5.8% 0.47%
Jorge Polanco 2B/SS SEA Free agency 2025 2 +2.6 +1.3 0.7% 0.05%
Gabe Speier P SEA Trade 2023 4 +2.5 +0.6 3.5% 0.38%
José Caballero SS SEA Draft 2023 1 +1.9 +1.9
Teoscar Hernández OF SEA Trade 2023 1 +1.9 +1.9 12.2% 1.27%
Emerson Hancock P SEA Draft 2023 2 +1.5 +0.7
Cole Young 2B SEA Draft 2025 1 +1.4 +1.4
Josh Naylor 1B SEA Trade 2025 2 +1.0 +0.5 12.6% 0.87%
Justin Topa P SEA Trade 2023 1 +1.0 +1.0 -1.00 6.6% 0.71%
Eduard Bazardo P SEA Trade 2023 4 +1.0 +0.2 -0.94 0.2% 0.02%
Brendan Donovan 2B/OF SEA Trade 2026 1 +1.0 +1.0 -9.19 0.9% 0.14%
Cade Marlowe OF SEA Draft 2023 2 +0.9 +0.5
Justin Turner 3B SEA Trade 2024 1 +0.7 +0.7 1.9% 0.14%
Collin Snider P SEA Trade 2024 2 +0.7 +0.3 1.2% 0.10%
Trevor Gott P SEA Trade 2023 1 +0.6 +0.6 3.7% 0.40%
Mike Ford 1B/DH SEA Trade 2023 1 +0.6 +0.6 3.9% 0.42%
Leo Rivas 2B/SS SEA Draft 2024 2 +0.5 +0.2
Ryan Bliss 2B SEA Trade 2023 2 +0.4 +0.2 +7.23
Jhonny Pereda C SEA Trade 2026 1 +0.4 +0.4 0.4% 0.06%
Víctor Robles OF SEA Free agency 2024 2 +0.4 +0.2 8.0% 0.65%
Ben Williamson 2B/3B SEA Draft 2025 1 +0.4 +0.4
Isaiah Campbell P SEA Draft 2023 1 +0.3 +0.3
Jorge Polanco 2B/SS SEA Trade 2024 2 +0.3 +0.1 0.7% 0.05%
Trent Thornton P SEA Trade 2023 1 +0.3 +0.3 -0.39 1.5% 0.12%
Tayler Saucedo P SEA Trade 2023 2 +0.3 +0.1 1.2% 0.13%
Alex Hoppe P SEA Trade 2026 1 +0.3 +0.3 +0.28 0.3% 0.04%
Luis Urías 2B/3B SEA Trade 2023 1 +0.2 +0.2 -1.05 0.5% 0.04%
Luke Jackson P SEA Trade 2025 1 +0.2 +0.2 1.2% 0.09%
Easton McGee P SEA Trade 2023 1 +0.2 +0.2 +0.06 1.1% 0.12%
Cooper Criswell P SEA Trade 2026 1 +0.1 +0.1 0.1% 0.01%
Michael Rucker P SEA Free agency 2026 1 +0.1 +0.1 0.1% 0.02%
Will Wilson 2B/3B SEA Free agency 2026 1 +0.1 +0.1 0.1% 0.01%
Caleb Ferguson P SEA Trade 2025 1 +0.1 +0.1 1.0% 0.07%
Luis Castillo P SEA Free agency 2025 1 +0.0 +0.0 0.0% 0.00%
Logan Evans P SEA Draft 2025 -0.0
Jose Ferrer P SEA Trade 2025 1 +0.0 +0.0 -2.30 0.0% 0.00%
Harry Ford C SEA Draft 2025 -0.0
Ryder Ryan P SEA Draft 2023 1 +0.0 +0.0
Gregory Santos P SEA Trade 2024 1 -0.0 -0.0 +0.64 0.5% 0.04%
Kirby Snead P SEA Free agency 2024 -0.0
Austin Voth P SEA Free agency 2024 -0.0
Seby Zavala C SEA Trade 2023 -0.0 +2.41
Donovan Solano 2B SEA Trade 2025 1 +0.0 +0.0 0.2% 0.02%
Ryne Stanek P SEA Trade 2024 1 +0.0 +0.0 0.1% 0.00%
Jonathan Hernández P SEA Trade 2024 1 +0.0 +0.0 0.0% 0.00%
José Rodríguez P SEA Trade 2023 1 +0.0 +0.0 0.1% 0.01%
Tyson Miller P SEA Trade 2024 1 +0.0 +0.0 0.1% 0.01%
Miles Mastrobuoni 3B SEA Trade 2025 1 +0.0 +0.0 1.8% 0.13%
Brett de Geus P SEA Trade 2024 1 +0.0 +0.0 0.0% 0.00%
Ty Adcock P SEA Draft 2023 -0.1
Blas Castano P SEA Draft 2025 -0.1
Jhonathan Díaz P SEA Free agency 2024 1 -0.1 -0.1 0.1% 0.01%
Tommy La Stella 2B/3B SEA Free agency 2023 -0.1
Casey Legumina P SEA Trade 2025 1 -0.1 -0.1 0.1% 0.02%
Rhylan Thomas OF SEA Trade 2024 -0.1 +0.89
Samad Taylor 2B/OF SEA Trade 2024 1 -0.1 -0.1 +0.52 0.1% 0.01%
Mitch Garver C/DH SEA Free agency 2023 1 -0.2 -0.2 0.2% 0.03%
Jesse Hahn P SEA Free agency 2024 -0.2
Connor Joe 1B/OF SEA Free agency 2026 -0.2
Tyler Locklear 1B SEA Draft 2024 -0.2
Troy Taylor P SEA Draft 2024 -0.2
Juan Then P SEA Draft 2023 -0.2
Jason Vosler 1B/3B SEA Free agency 2023 -0.2
Josh Simpson P SEA Trade 2026 -0.4
Carlos Vargas P SEA Trade 2026 1 -0.4 -0.4 0.2% 0.03%
Rob Refsnyder OF SEA Free agency 2025 -1.0

Trade-side columns: RFA is playoff-readiness percentage points added to the future roster foundation. It grades the franchise's entire side of a trade, so the same score repeats for every player acquired in that package. PPA/CPA remain player-level arrival-year probability points.

WAB = wins above what the team's payroll predicted (resource-controlled). WAR surplus = era-neutral value (WAR minus payroll in win-equivalents). Roster surplus $M = dollar value of WAR over cost. Build channels (realized fWAR): HG = home-grown via amateur draft / international signing; Trade = acquired minus surrendered (incl. purchases/waivers); FA = signed minus walked; R5 = Rule-5 / minor-league-draft pickups. Credit follows the acquisition year — home-grown to the regime at the player's draft/signing (not whoever was in the chair when he peaked), trade/FA/R5 to the GM who made the move. Players acquired as prospects before debuting (e.g. Smoltz, Bagwell; Rule-5 picks like Uggla) are counted as trade/R5, not home-grown. All are franchise-level outcomes during the stint, not solely attributable to one executive.

Graphs

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