This bullpen just cannot consistently throw strikes. It is a bad movie - walk, hbp. balk, & and throwing very BP fastballs after getting behind in the count.
Late-inning relief pitchers (7th, 8th, 9th innings) that walk batters (or, hit them with a pitch) are the absolute worst.
My #1 rule for all late-inning relief pitchers: FORCE the batter to hit the ball to get on base. Do NOT walk a batter (or, hit a batter) under any circumstance, unless you are specifically instructed to intentionally walk him.
I'd tell all my late-inning relief pitchers: if you walk/hit a batter (just one), then you'll be taken out of the game. Throw strikes. Don't walk or hit any batters if you want to keep pitching.
Of course, I'd retain the right to make an exception for a stud closer, if the circumstances warranted it.