This reminds me of when I played little league baseball. It was a foregone conclusion that if you had runners at 1st and 3rd, the guy on 1st base would steal 2nd base. I remember being in this situation many times, and once that first pitch was thrown we would just jog to 2nd base, didn't even need to hustle or slide, because we knew the catcher would never attempt to throw you out or else the player on 3rd would steal home.
Then I remember watching the Yankees with my uncle, and they had runners at 1st and 3rd. And I remember being confused and asking him why they weren't stealing 2nd, and he just kind of chuckled and said that doesn't work in the pros, the defense is too good for the offense to get away with it.