Danny Espinosa first came up at the end of 2010, just as the Nats were starting to climb out of the 2008-2009 franchise nadir. He hit .214/.277/.447 over 112 plate appearances with 6 home runs. He walked 8.0% of the time and struck out 26.8% of the time.He was a low-average, low-patience hitter with a surprising amount of pop, and managed a 90 wRC+ (recall that 100 is league-average for a position player, and higher is better). That’s perfectly acceptable for a middle infielder, especially one with plus defense.Espinosa has played a fair bit of baseball between the end of 2010 and now, but take a look at his 2015 batting line so far:in 119 PAs, he’s hit .