Lots of players separate court sense from player strokes, but the two go hand in hand, even if the senses and the hitter are two different players on the same team.
Your partner is hitting the balls. He's supposed to be on your team, so essentially, he's an extension of YOU. Your strategy is supposed to be geared towards winning. His strategy should be also. Both of you are supposed to think along the same lines, not exactly the same, but the same general concepts.
Your partner seems to hit lots of weak, high floating balls waiting to be crushed, down your throat or for a clean winner.
What do you do? You can tell your partner to hit harder. You can run around your side of the court senselessly, hoping to distract your opponent's. You can backup to a safer defensive position, which is being done.
Which to choose?