I don't think that there's any such thing as 'compensating for poor starts'. What the law of averages says is that in absence of other factors, your player will return to his average pace of production, not that he's going to make up for being a bum by suddenly hitting everything in sight.
Don't fall for the gambler's fallacy, in other words. A losing streak doesn't mean that a winning streak is right around the corner.
I agree with the above posters, though. You have too much tradeable talent on your bench. Drop guys who you aren't using and can't trade, and trade the guys who have value for upgrades in other areas. These guys like Berkman are perfect 'throw-ins' for a trade that will upgrade you elsewhere.
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