Percy Harvin trade had 49ers' attention, too

The Seattle Seahawks were not the only suitor Monday in trade talks for Minnesota Vikings receiver Percy Harvin. The NFC West-rival San Francisco 49ers were also involved, but the Seahawks were so much more aggressive that a bidding war never materialized.

That was the word Monday night from people familiar with the negotiations. It's more footnote than headline from a national perspective, but around here, these are the details that frame the discussions for a season.

Did the Seahawks overpay for Harvin? Did the 49ers come out OK by acquiring Anquan Boldin from Baltimore? Were the St. Louis Rams and Arizona Cardinals smart to sit out this one? Did they lose ground to Seattle and San Francisco in the division race?

On the 49ers, I couldn't see them paying big money for Harvin given their looming negotiations with top receiver Michael Crabtree, a player the team obviously values. But I could definitely see them trying to upgrade at receiver. Their move to acquire Boldin shortly after Harvin went to Seattle shows the 49ers were serious about that.

The 49ers must figure out this season whether Mario Manningham still figures prominently into the offense following ACL surgery. Is his $3.6 million salary an issue? The 49ers also need to find out whether 2012 first-round draft choice A.J. Jenkins can factor significantly.

The 49ers will do these things with Harvin lining up against them twice each season and possibly more if Seattle and San Francisco square off in the playoffs. That's part of the fallout from a frenetic Monday in the NFC West.