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Wedge may indeed not have a lot of choices. League is their only real mid-season trade chip of worth, so he may have orders to get him right. He may well have had orders to give Figgins that shot as well. Reading between the lines on his comments about this week's Figgins-Wells fiasco, he likely didn't have a choice there either.
He did choose to PH Ryan instead of Ackley in the 9th, so he's not blameless but there are factors at play in his decisions outside that day's game - whether we like it or not.