via blog.oregonlive.com

Per the Times-Pic

The Saints added a new but somewhat familiar face to their 53-man roster Friday, picking up quarterback Joey Harrington.

"It worked out how I had hoped," Harrington said. "That was the ultimate goal, to get to a place where I could kind of take a step back, learn from some great people, some great players, some great coaches, and be a part of a team that's going to have some fun."

Rotoworld.com:

Harrington signs with Saints -Harrington couldn't beat out D.J. Shockley in Falcons training camp, which qualifies as one of the low points of his now journeyed career. The 2002 No. 3 overall pick is unlikely to unseat Saints No. 2 QB Mark Brunell. September 19 - 12:59 p.m. ET Source: New Orleans Times Picayune

Wikipedia:

John Joseph "Joey" Harrington, Jr. (born October 21, 1978 in Portland, Oregon) is an American football quarterback for the New Orleans Saints of the National Football League. He was drafted by the Detroit Lions third overall in the 2002 NFL Draft. He played college football at Oregon.  Harrington's worst game came during the 2000 Civil War game against the Oregon State Beavers, Oregon's archrival. Harrington threw 5 interceptions (and fumbled once), costing the Ducks a 23-13 defeat and costing them a trip to the Rose Bowl. The game marred an otherwise very good junior season.

 

Harrington was picked by the Detroit Lions with the third pick overall in the 2002 NFL Draft. Harrington immediately became the Lions' starting quarterback during his rookie season, finishing that year with a 50.1 completion percentage, a ratio of 12 touchdowns to 16 interceptions, and a decidedly subpar 59.9 quarterback rating; the Lions finished the season with a 3-13 record. Harrington went on to post some of the worst yards per attempt seasons ever by a regular QB. Among those performances were his 2002 and 2003 campaigns, the two worst YPA showings in the NFL or AFL since 1960 among QBs with 425 or more attempts in a season.[4]

On October 23, 2005, Lions coach Steve Mariucci chose to bench Harrington in favor of Jeff Garcia for the team's game against the Cleveland Browns to try and provide a spark to the team's 2-3 start. The Lions won 13-10, and Garcia rushed for Detroit's only touchdown. After yet another dismal offensive performance, Coach Mariucci declared that Garcia would remain the starter. This marked the first time since the 2002 season that Harrington did not appear in a Lions' game, breaking a string of 37 consecutive appearances. Harrington regained the starting role the week after Garcia threw a game ending interception returned for a touchdown in overtime against Chicago. Harrington started again for Detroit on November 13, 2005, against the Arizona Cardinals, throwing for three touchdowns without an interception in the Lions' 29-21 win. Harrington was voted by Lions fans as their Offensive Player of the Year, according to the Lions' official website. Despite his difficult times in Detroit, he always remained unwaveringly optimistic and was thus dubbed "Joey Blue-Skies" and "Joey Sunshine" by sarcastic Lions fans and writers.

 

This is not a popular move, judging by the Times-Pic comment section here

I'm already on record against this move.  But I am not PayLoo.