In April of 2011 I published a playoff model, one that described
 the odds of winning in terms of home field advantage, strength
of schedule, and previous playoff experience. In the work I did
then, I fixed the length of time of previous playoff experience
to 2 years, and as I was working with (and changing) my
experimental design (the “y” variable was initially playoff
 winning percentage, which turned out to be a relatively
insensitive parameter), once I had a result with two independent
variables, at that point I called it a day and published.  Once
the 2011 season rolled into the playoffs, while thinking about
the upcoming game between Atlanta and New York, I realized I had
never tested the span of time over which playoff experience
mattered. I then proposed that New York could be considered to
have playoff experience, since it had played in 2007, and if so,
there would be marked changes to the odds associated with the
New York Giants. This was a reasonable proposition at the time,
because no testing had