Theo Epstein and the Cubs front office are always trying to evaluate the franchise's major weaknesses, looking for potential leaks that could sink the ship.
It's only Aug. 2, but one such issue flew to the forefront Thursday evening.
After trade deadline pickup Jesse Chavez gave up a 3-run homer (the first runs he's allowed as a Cub), the game was still in shouting distance for the Cubs. But a pair of lefties — Justin Wilson and Brian Duensing — combined to allow 3 runs in the final three frames to break the game wide open for the Padres.