EAST RUTHERFORD, N.J. -- It has been nine years since the New England Patriots won back-to-back Super Bowls, and no team has come close to repeating since then. Nearly two decades have passed since the Dallas Cowboys won three titles in four seasons, and it has been 34 years since the Pittsburgh Steelers won four in a six-season span.

NFL dynasties, always tough to come by, are nearly impossible in the salary-cap era. No team has come closer than the Patriots to establishing one recently, but New England, for all its numbingly consistent success, hasn’t won a championship since the 2004 season.

The Seattle Seahawks’ young roster and recent success, punctuated by their dominant 43-8 win over the Denver Broncos in Super Bowl XLVIII, gives them a better chance than most at winning multiple championships over the next several seasons. As for a dynasty in the making? Yes, the Seahawks have a shot at establishing one. Here’s how.

Develop the passing game

Pete Carroll came to Seattle with a clear vision for his defense, and that vision has been realized on the field. Carroll also had a less-publicized vision for his offense. He wanted a power running back, a risk-averse quarterback and a big, physical receiver. He had those things briefly back in 2010 when Matt Hasselbeck was behind center, Marshawn Lynch fell into place via trade and Mike Williams came off the scrap heap to factor as a physical, move-the-chains wide receiver.