Originally Posted by TheNext44
You are correct. The law of diminishing returns works here. A team can only lower their runs prevented to so low a number. This year the lowest was 611 in the NL, which was the lowest in many years. In the 80's and the 60's teams had as low as 550.
The Reds allowed 673 runs, which was their lowest in years. So lets assume the new lowest level is 600 for this current situation the league is in. That means the Reds could go 73 runs lower, which is quite a lot. I don't think that if they got a gold glover at all starting 8 positions, they would gain more than 73 runs, especially since the are getting solid defense at nearly every position already.
To me that means that they shouldn't worry about where the difference comes from, they aren't going to run out of defensive value to gain for a while.
To me, there seems to be a cyclical nature to favoring offense or defense. It starts with a team having spectacular success by building a certain type of team. Others begin to copy the approach. At some point the strategy becomes so pervasive that it is open to a counter strategy. Baseball went through an era of offense when steroids were prevalent. I think we are in the middle innings of a swing back to emphasizing defense.