I was making a joke about how old the Yankees are
No you weren't
I always assumed it was a strategy employed by teams with small payrolls
And you can clearly see how all of the Yankees signings this offseason were influenced by sabermetics. They were going for guys that can get on base (when healthy). Youk, Hafner, Overbay. All guys that can work a count, work a pitcher, and get on base.
The use of stats is everywhere in baseball today. Whether it's defensive positioning, right/left platoons, or who to bring in from the pen. Every team uses it.