262 innings have been thrown this month by pitchers with previous playoff experience prior to 2010. Those 262 innings have been thrown over 30 starts and 92 relief appearances. Over those 262 innings, the pitchers have a combined 3.78 ERA, with an 8.3 strikeout rate and a 2.7 walk rate.
252.2 innings have been thrown this month by pitchers without any previous playoff experience prior to 2010. Those 252.2 innings have been thrown over 28 starts and 93 relief appearances. Over those 252.2 innings, the pitchers have a combined 3.10 ERA, with an 8.9 strikeout rate and a 3.1 walk rate.
There have been 1,145 at bats this month by players with previous playoff experience prior to 2010. Over those 1,145 at bats, the players have hit .221, with a .281 OBP and a .359 slugging percentage.
There have been 783 at bats this month by players without any previous playoff experience prior to 2010. Over those 783 at bats, the players have hit .248, with a .310 OBP and a .382 slugging percentage.
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This isn't the best way to conduct this kind of analysis. Ideally, one would compare the experienced players to themselves and the inexperienced players to themselves by looking at their regular season and playoff stats. We'd then see how well each group carried its collective performance over into October. But doing that would take way more work, while this only took half an hour. And I think we can safely assume that the inexperienced pool of players isn't so much better than the experienced pool of players that the numbers above actually favor the latter over the former.
Playoff experience. It's probably nice to know how to handle the media. It doesn't seem to matter on the field.