Busy day for the NFC North

As a "final 8" team in this new uncapped year, the Vikings don't look to be too active in free agency this offseason. But the other teams in the division aren't as restricted, as was evidenced by today's flurry of activity by two of the Vikings' divisional rivals.Well, by one of our divisional rivals and the Lions.Here's my opinions, in order of increasing importance, of the five free-agent moves made today by the Bears and the Lions.5) Lions sign WR Nate Burleson. Apparently learning nothing from the Seahawks, who got nine more catches and 31 fewer yards in four years of Burleson than the Vikings got from him in three, the Lions handed Burleson a five-year, $25 million contract. He did have a respectable 63 catches and 812 yards for the Seahawks last year but also missed three games, following a one-game 2008 season. And the Lions continue to show why they're in last place, year after year.4) Bears sign RB Chester Taylor. If you're surprised I ...