You can read Parts 1 and 2 of our State of the Astros (All-Star Break Edition) here and here.
Overall
Overall the Astros have had a decent set of arms, posting a 10.1 WAR so far this season. Their 3.79 ERA is 10th in baseball, right in line with the 3.71 FIP and 3.94 xFIP. They have benefited from the use of shifts and focus on defense with a .279 BABIP, tied for 3rd in baseball, and just three points behind the .276 Royals. Overall the 49.6% groundball rate is 3rd in baseball, as well.