Every team enters the trade deadline with a wish list. No one gets everything they want -- even if in San Diego it might feel that way right now.
No roster is perfect. There are always holes on even the most powerful clubs, little problems the front office and manager must try to solve, game after game.
Let's drill down on a few of these potential sore spots, focusing on contenders. We'll use some basic criteria: If a contending team has a position group that has performed, according bWAR, at least a half-standard deviation below average, and projects to continue at that level for the rest of the season, they might be on this list.