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Is largely about having potential breakout youth around the core. Keeping the window open can happen if just one or 2 of those guys break through each year and Dipoto has given every indication that that's exactly what his goal is.
If Seth Smith gets traded, what's the average age on opening day? 2 years younger than when he took over? 3? And that with the holdovers aging 1.5 years during that time.