This is not a new concept, but the Orioles seem to be a better offensive team when they are facing one of the game's better pitchers, and that was apparent again during the early innings Sunday.

Jhoulys Chacin (11-6) has been the most effective starting pitcher in Colorado Rockies history, based on career ERA, and he has been one of the stingiest guys in either league when it comes to giving up the long ball.

So what happens in the rubber game of the three-game series at Camden Yards? The Orioles suddenly got more patient at the plate and worked Chacin for a run and three hits in the second inning and added two more on Adam Jones’ home run in the third.

The two-out rally in the third was the best example of the Orioles hitters toning down their overly aggressive approach at the plate and becoming selective enough to get hittable pitches from a high-quality starter.

Chris Davis had no choice but to be selective, because Chacin tried to avoid him and fell behind 3-0 on the count before throwing a couple of strikes and giving up a sizzling double down the right-field line. Jones was able to lay off the breaking ball under the strike zone (which has been no small feat for him at times this year) and get a pitch up and over the outside part of the plate. He got full extension and lined it over the center field fence.

Very impressive. The only question is why the Orioles don’t take that same approach all the time, since they tend to get themselves out a lot against pitchers with a lot less going for them than Chacin.