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Seattle has taken a big risk to get Harvin and might reap a huge reward. But the risk is bigger than the draft picks and cost of his contract. It's bigger even than his history of friction with coaches. This guy is a migrainer. That means that if the drug regimen or the complementary stress and diet management gets more than a hair off kilter at any time, he could become nonfunctional. Not a risk I'd want to take.

I'm tempted to agree that Boldin is a steal. It definitely grabs attention when the loser in a Super Bowl trades for a player who played such a key role in winning the game for their opponent.

But with the 49ers going after Super Bowl-starring wide receiver Mario Manningham last year, and now Super Bowl-starring wide receiver Anquan Boldin, is there cause for concern that the 49ers might have started to channel the ghost of Al Davis?