Daniel Mengden has always pitched through stretches where he’s looked strong enough to merit a permanent spot in the rotation, but he has been too inconsistent to be warranted one. Whether he is starting the game or has an opener before him, it is impossible to tell which Mengden, the “good” or the “bad,” will be pitching until the game begins. With a big three game series against the Astros in Houston beginning tomorrow, it was imperative...