Re: Time for Introductions...
Remember, pitches 1-15 are almost certainly against the teams top 3 or 4 hitters so they're bound to be higher. That's also why you see, on average, more runs scored in the first. The lineup is set up to take advantage of this certainty of opportunity.
Games are won on run differential -- scoring more than your opponent. Runs are runs, scored or prevented they all count the same. Worry about scoring more and allowing fewer, not which positions contribute to which side of the equation or how "consistent" you are at your current level of performance.