No one (no one important, anyway) is calling for Domonic Brown's head right now, despite his superficially subpar .220/.301/.422 numbers so far, but here's a quick post advocating for Domonic Brown. Enjoy.
Simply put, Brown has been remarkably unlucky over the past month. Brown's .171/.267/.378 line in June is easily explained by an incredibly low BABIP (Batting Average on Balls in Play) of .150 for the month. When you take into account that league average BABIP is generally right around .300, you'll see that Brown doesn't have to do a whole lot differently to see improvement in his overall numbers.
Brown's walk rate in June is a very good 11.6%, and his ISO (Isolated Power) is .197 also quite good. Extrapolated over the whole season to date, Brown's .197 ISO would place him in the league's top 25 hitters in that category.
The conclusion to this quick and dirty look at the numbers is that Domonic Brown is hanging in there, and his peripheral stats are actually quite good. Once a few more of those balls in play start dropping in for hits, we're probably going to have a pretty nice player on our hands.