Perhaps the advantage/edge a Coach, like Paul Johnson, who has been involved in playoff games in the past, is that he'll have a better feel (at least the first time a new coach gets into the playoffs) of how to manage the players' time, expectations, and health. He'll have a better understanding going in that there will be continued training, film studies, travel, and their team may get "anxious" as it may appear things get compressed into a shorter schedule because you get high profile games played back-to-back with (typically) no time off. He may also be better prepared for the press demands related to the playoffs because he'll already have canned answers to their dumbass questions...