Jaguars coach Jack Del Rio replied, "No,'' when asked if Couch would compete for a starting or backup job, so he'll either be a camp arm or compete with Quinn Gray for the third-team job.
"He's got an opportunity to come in here like anybody else who's in camp,'' Del Rio said.
With Gray sidelined with a sprained ankle, the Jaguars needed a fourth arm in camp to throw with Byron Leftwich, David Garrard and rookie Lester Picard.
"We're a little short at that position right now with Quinn down, so we added a fourth quarterback. At some point, Quinn will get healthy and at that point, we'll deal with the numbers,'' Del Rio said.
Couch hasn't played in the NFL since Green Bay cut him at the end of training camp in 2004.
He then underwent surgery for a torn labrum, torn rotator cuff and a torn bicep. He tore the rotator cuff again last year and was finally cleared to play about three weeks ago.
The Jaguars also worked out two undrafted rookie free agents, Scott Eyster of Delta State and Sam Hollenbach of Maryland, but went with Couch's experience.
Del Rio declined to say why the Jaguars picked Couch over signing free agent Daunte Culpepper, who was the 12th pick in 1999, the same year Couch went No. 1.
"There are a lot of things that go into personnel decisions that I don't care to go public with. The bottom line is that this is where we are and this is what we've done,'' Del Rio said.
Couch, who signed a seven-year deal with a $12.3 million signing bonus in 1999, will not be paid a signing bonus by the Jaguars. He'll get the veteran minimum of $595,000 if he makes the team this year and a slight increase next year.
The Jaguars will save money if they pick Couch over Gray, who signed a $1.3 million tender in the offseason.