ORLANDO, Fla. -- Many believe the New England Patriots and Denver Broncos have done the best in free agency, and that doesn't sit well with Baltimore Ravens coach John Harbaugh.

"I was disappointed with the moves that the Broncos and Patriots made in the offseason. What more can I say?" Harbaugh said. "I thought they did a great job and that disturbed me.”

The Ravens have had a productive offseason, re-signing many of their own free agents as well as adding wide receiver Steve Smith and center Jeremy Zuttah.

But the Ravens are trying to catch the Broncos and Patriots. The two teams who played in last season's AFC Championship Game have competed against each other this offseason in terms of big signings. The Broncos signed cornerback Aqib Talib, safety T.J. Ward, wide receiver Emmanuel Sanders and defensive end DeMarcus Ware, while the Patriots brought in cornerbacks Darrelle Revis and Brandon Browner as well as re-signing wide receiver Julian Edelman.

The Broncos and Patriots attacked free agency differently than the Ravens for a reason. Those teams have aging quarterbacks and have taken an all-in philosophy. Ravens officials believe they have a longer window to win a championship.

The Ravens, obviously, aren't conceding anything.

“We’ll find out. The proof is in the pudding," Harbaugh said. "But obviously they’ve added some pieces. I think both of those teams do a great job. They make great decisions, they’ve very particular with who they add and they add the player they need in the spot they need. It seems they draft that way as well. You’ve got to applaud what they’ve done. But we’ll play games in the fall and see how it plays out.”