Castro is a terribly perplexing signing...
He has a career OPS of .600. for a combined OPS+ of 57. He's sure-handed, but has poor range.
The twins already have a plethora of mediocre middle infielders. (Bartlett, Cuddyer, Rivas, Punto, Ojeda)
Oh and they are going to be giving him $1M for the next TWO seasons.
Why????