Speaking in the context of this playoff series only, Michael Young is a great example of this. If the first base umpire makes the right call on his check swing in the fifth inning, Young goes down on strikes and maybe the Rangers don't score in that inning (Young would have been the second out). But the ump missed the call, Young hit the next pitch over the centerfield wall, and suddenly he's a hero in this game (assuming this lead holds up) instead of a guy still looking for his first-ever playoff base hit.
He added an infield single in the 7th inning, and just like that, his playoff batting average is .250.
Success and failure are often separated by something as small as this -- a missed call, a blooper that finds grass instead of a defender's glove. From the Rangers perspective, the missed call on Young's check swing may be the best thing that has happened so far in the playoffs. Instead of one of their best hitters being 0-for-7 going into his next at bat, Young got on the board with a huge hit, which has to be both a huge boost to his confidence and a weight off his shoulders. With Texas on the verge of a 2-0 series lead, this is beginning to look like a long playoff run, and with Young proving to himself that he can perform on this stage, that will serve him well going forward. Thanks in large part to a blown call.