I did not bring this up to debate the topic again, but rather to give an example of a traditional belief or old school belief. The idea that having a "disruptive" runner on first base benefits the batter at the plate is one that is largely believed to be true. However, the data simply does not support this notion.
A traditionalist is going to believe it anyway, because that's what he/she "knows" from all the years of watching baseball, despite what the numbers say. FTR, it was more than one study that I linked. You choose not to believe the stats because they don't support what you've always believed.
Before I researched the topic, I would have sworn up and down that having a disruptive runner on first benefits the hitter at the plate. After seeing the data on the topic, I now believe otherwise.
That, for me, is what I see as the difference between old and new school. (Yes, CP, I know it's not an either/or thing.) You are going to believe what intuitively seems to make sense regardless of the data. I am going to believe the numbers.
As far as sac bunts go, they absolutely do have their place in baseball. Unfortunately, the sac bunt is a tactic that is way overused.