The 2007 NFL offseason has been bustling with activity so far. As the NFL Draft approaches (April 28-29, 2007), many more changes are expected to be made as teams finalize their rosters heading into training camp.

Let's break down some of the key moves in the NFL that have taken place recently through trades and free agency.

Many quarterbacks are on the move, from veterans moving to Super Bowl contenders, to young quarterbacks getting a shot to start on a new team.

This article will focus on the quarterbacks who have changed teams. Look for future spotlight articles on the running backs, wide receivers and the rest of the league in what has been one of the most eventful offseasons in recent history.

David Carr

After languishing with the Houston Texans for five long seasons, Carr is moving on to what he hopes are greener pastures with the Carolina Panthers. Carr, the number one overall pick in the 2002 NFL draft, signed a two-year, $6.2 million deal with the Panthers after being released by Houston. The 27-year-old is expected to serve as the primary backup quarterback to Jake Delhomme.

Jeff Garcia

Garcia, who filled in for the injured Donovan McNabb in Philadelphia last season and finished with a 6-2 record, was not offered a new contract after the season when the Eagles decided to sign the younger AJ Feely. However, Garcia was not unemployed long. He signed with the Tampa Bay Buccaneers and is expected to compete in training camp with Chris Simms and Bruce Gradkowski for the starting quarterback spot.

Joey Harrington

After his recent release from the Miami Dolphins, Harrington now finds himself headed to Atlanta. The 28-year-old was signed to two-year deal by the Falcons to back up quarterback Michael Vick. Harrington, a five-year NFL vet, started 11 games last season for Miami where he went 5-6. Harrington was acquired last year by the Dolphins in a trade from the Detroit Lions.

Brad Johnson

After starting fourteen games with the Minnesota Vikings and amassing a 6-8 record in 2006, Brad Johnson was released by the club, which is undergoing a youth movement with the young Tarvaris Jackson. The 38-year-old Johnson, who was sought by both the Dallas Cowboys and the Denver Broncos, opted to sign a three-year deal in Dallas. Johnson won a Super Bowl with Tampa Bay in the 2002-03 season. He is expected to back-up and mentor young Tony Romo.

Patrick Ramsey

28-year-old Patrick Ramsey signed a two-year contract with the Denver Broncos worth a reported $5 million. Ramsey was a hot commodity, being wooed by the Broncos, Houston Texans and the Carolina Panthers. Ramsey is expected to be the backup quarterback behind second-year player Jay Cutler. Last season, Ramsey was with the Jets, where he threw only a single pass all year. He spent four years with the Washington Redskins before being traded to the Jets prior to last season.

Matt Schaub

Schaub, who spent the last three seasons as the backup to Michael Vick in Atlanta, was traded by the Falcons to the Houston Texans. Atlanta and Houston swapped first-round picks in the 2007 draft and Atlanta also received second-round picks from the Texans in 2007 and 2008 to complete the deal. The 25-year-old Schaub, who will be the starter in Houston, inked a six-year, $48 millon deal for the Texans.