[Vermin360]

Initial suggestion would be to use 2018 performance stats. If I start a new Perfect Team with each following year of OOTP (as EA does with Madden Ultimate Team, etc.) then the extremes of a season would be represented as performance relative to the current year (if we should end up in a dead ball era again, the simulation engine would reflect that, no?). It might make for interesting scenarios where your strategy may need to changed based on the way baseball is currently being played in real life.