Jack Flaherty is becoming an unpredictable piece in the Detroit Tigers’ rotation. After making his return to Detroit this offseason and signing a $35 million contract, expectations were higher. The Tigers have been leaning on consistency to get to their 14-14 record in the AL Central. Jack Flaherty might not be supporting that move. Sometimes Flaherty looks like the star that Detroit fans know him to be, and other times, well, let’s just say he doesn’t. In the game on Saturday against the Cincinnati Reds, Flaherty produced another short and damaging out. Just two innings pitched, six earned runs, and three home runs allowed. These numbers are hard to ignore when you are talking about a starting pitcher. Through his six starts this season, he owns a 5.33 ERA and 1.74 WHIP across just 25.1 innings. Pattern Shows Highs and Lows Jack Flaherty | Bruce Kluckhohn-Imagn Images What makes this an even more complicated situation is that Flaherty isn’t ineffective consistently .…