If it's not a keeper, I would consider dropping Ackley before Werth. Trumbo has been putting up decent power numbers, so the move is solid. I just would take Werth over Ackley right now, given that he's heating up and Ackley is a rookie on the M's (two not so great traits). Even if it was a keeper, I'd rather drop Ackley than Werth, although by a lesser margin.
Thanks for the help on mine.