The Brewers pitching staff has done a good job inducing ground balls (44.8% rate), opponents have a .263 BABIP (2nd best in MLB).

I'd say the big concern for the Brewers when it comes to pitching is that while they yield such a low BABIP, they give up hard hit rate that is so high (32.8%) along with a strong dependence on defense from 2B/SS/CF (3rd in the MLB) that is much more than other teams. The HR/FB rate (15.8% - 3rd worst in MLB) should be concerning as well, if the ball is lofted, which is not too often... the ball flies out of the park. Hot and muggy conditions aids the loft of the ball and this will be a challenge coming into June-August. The major key would seem to be keeping the ball on the ground and not drawing walks.

Another warning sign is the fact that these Brewers pitchers are hanging their breaking pitches. Sliders and curveballs are just hanging out there too often (especially Houser, Anderson, and any relief pitcher not named Josh Hader).

The addition of Willy Adames is important for the Brewers defense because of the hitter spray distribution, the Rays had to trade him though (but that's a different subject). Jackie Bradley Jr. is extremely streaky as a hitter, but his ability to add value as a defender is well-known. However, on a National League team, he's even more of liability than he was in Boston because of the lack of a DH and each position player needs to play a bigger offensive role.