And that means they can no longer afford to keep Don Mattingly as interim manager. With Jesus Luzardo in cruise control, it seemed like a much-needed win was in the bag ... until Mattingly decided to step in. All of Don Mattingly's flaws have been on display amid Phillies swoonPhiladelphia Phillies v Miami Marlins | Sam Navarro/GettyImagesMattingly spent the first couple of months of his Phillies tenure soaking up credit that wasn't necessarily his. Now that the halo effect has begun to wear off, the Phillies are speedrunning through the full Don Mattingly experience. He's clearly not helping you win games on the field, and he's actively making things worse off of it.