I don't see a major shake up soon. They have come out of the hitting slump a bit but they really won't be totally out until Fielder starts hitting. Weeks and Cameron are K machines yes, but Cameron has a good OBP% for his career and that is the only reason why he is there. Personally I would shake it up like this.
Weeks-i think you are stuck with him here. Great R producer, hopefully he works out of it
Hardy-best fastball hitter on the team, and he will see a lot of them here
Braun-Braun has hit horrible behind Fielder, plus you get RB up in the first inning every game, and more AB's throughout the seaon.
Hart-has to stay in a run producing position, gives Fielder good protection even though it hasn't helped so far, but it will!
Hall-he is going to be platooned against some RHP w/ Counsell. Make adjustments accordingly.
Kendall-need to get back to a regular line-up and bat the C 8th.