Interesting parallels to last season in terms of fielding for Starlin Castro. He really struggled out of the gate in 2012 with 7 errors by April 21, which was only the 15th game of the season that year. From that point on he "only" made 20 through games 16-162. Castro again struggled out of the gate but was better with only four errors through the same date. Here it is game 42 in 2013 and he just made error number 6.
Don't get me wrong, Castro still has to get better and clean up the mistakes, but lets keep some perspective in the fact that his sixth error today moves him into a tie for third worst with Alexei Ramirez and Alcides Escobar, assuming no other SS makes an error today either. This is far from great, but this is progress compared to other seasons as Castro begins moving closer to realizing his potential on defense.