John Morton
F · 3 seasons · 1989-90 – 1991-92
John Morton was worth +1.2 in turnovers alone, more than his entire career total of -9.5 once everything else is counted against him. The peak came in 1990-91, -1.2, 189th that season and 12639th of 24,555 player-seasons on record. The value came from turnovers (+1.2) and free-throw percentage (+0.3). It leaked back out through rebounds (-2.6), points (-2.3) and field-goal percentage (-1.8).