Joe Kopicki
F · 3 seasons · 1982-83 – 1984-85
Joe Kopicki is the extreme version of a specialist. +3.3 of roto value came from turnovers, yet his career total is only -9.3. The peak came in 1983-84, -2.6, 206th that season and 15879th of 24,555 player-seasons on record. The value came from turnovers (+3.3), free-throw percentage (+0.6) and field-goal percentage (+0.0). It leaked back out through points (-2.9), steals (-2.8) and assists (-2.5). Switching basis moves him 646 places, which is the whole argument about availability in a single figure.