Mark Craig's look at the AFC

In the AFC, the Broncos hope balance between offense and defense yields a title

Denver's record-setting offense discovered via global humiliation that defense not only wins championships but also prevents one from being beaten silly on Super Bowl Sunday. So, with the current window of opportunity presumably closing quickly, Broncos boss John Elway has shoved all of ownership's chips to the middle of the table for what could be one final swing for 38-year-old Peyton Manning.

Browns strong safety T.J. Ward, Patriots cornerback Aqib Talib and Cowboys linebacker DeMarcus Ware all came aboard for a mere $60 million in guarantees.

Will it be enough? Who knows, but in a league that handcuffs its defenders with every new rule and annual points of emphasis, it's kinda nice that Denver had to ante up to improve its defense, which ranked an eye-opening 21 spots lower than Seattle's No. 1-ranked scoring defense.

Of the seven new head coaches, Houston's Bill O'Brien is in the best position to be the happy guy running the team that makes everybody go, "Man, I shoulda seen that coming."

O'Brien inherits a 2-14 team that was 12-4 the year before. Key players have returned from injuries, including linebacker Brian Cushing, and the defense features the best defender in the league, end J.J. Watt, and another playmaking pass rusher, No. 1 overall pick Jadeveon Clowney, on the other side.

A year ago, Andy Reid turned a 2-14 Chiefs team into an 11-5 Chiefs team. Similar turnarounds are almost routine in today's NFL, so it's not unrealistic for the Texans to expect a playoff push in the softer AFC South.

With a new six-year contract, he has 115 million reasons why a 30-18 regular-season record doesn't offset a 0-3 postseason mark that includes one touchdown pass, six interceptions and last year's 17-point home loss against San Diego as the No. 3 seed.

Bengals coach Marvin Lewis sounds all in on the Dalton deal. But it's hard to blame Bengals fans for being leery.

Dalton has a 56.2 postseason passer rating for a franchise whose 23-year drought without a playoff win is the longest in the NFL.

Yeah, even longer than Detroit (22 years).

Colts quarterback Andrew Luck would be way ahead of schedule if Russell Wilson hadn't just won a Super Bowl or Colin Kaepernick hadn't just been to his second NFC title game after being to his first Super Bowl the year before.

Kaepernick was a second-rounder in 2011 and Wilson was a third-rounder in 2012. Luck has a long list of NFL records for a quarterback after one and two seasons. But he never has been to a conference title game and is nine days from turning 25. For gosh sakes, get crackin', Andrew.

The Colts have concerns on the offensive line and in the middle of their defense. But that's no excuse for Luck not to win the AFC South.

After all, his predecessor, Manning, won a Super Bowl while covering up blemishes on teams that were more flawed than this.

There are a few AFC coaches on the proverbial hot seat. Joe Philbin in Miami, Dennis Allen in Oakland, whoever was coaching the Browns as this edition of the Star Tribune went to press.

But you have to admire Jets coach Rex Ryan's courage. Adding Michael Vick to a tense situation and pretending Geno Smith still is your starter isn't beyond taking your spot on the hot seat.

Manning is second in NFL history with 491 career touchdown passes. He needs 18 more to break Brett Favre's mark of 508. A year ago, Manning became the first player in NFL history to throw 16 touchdown passes in the first month of a season.

MARK CRAIG