Losses are on both coaches and players
Players normally are the biggest impact assuming things fairly equal off the field (coaching and health) weather being an equalizer
A poor coach can certainly hamstring his squad and put them at a severe disadvantage vs a formidable coach…unfortunately the majority of winning playoff coaches are formidable which puts the Steelers at a severe disadvantage (should they get the needed help from about 4 teams and sneak into the tourney with their deer in headlights coach standing in his puddle of piss)
This disadvantage grows when the coach is predictable
This disadvantage grows also as a coach becomes too conservative
The disadvantage grows when the team is not ready from the very beginning of the game/prepared
Our guys step into a playoff game looking unprepared and not positioned for victory and they fail, yes they fail at making many of the plays but are frequently fighting an uphill battle from the jump.