This article takes a relatively in-depth look at David Garrard.
"Most Jaguars fans will tell you that they do indeed need a quarterback. To an extent that is true, as David Garrard is not an elite quarterback.
Garrard however is a good, serviceable quarterback who, with the right pieces around him, could take his team deep in the playoffs. Garrard is 33 years of age but hasn't lost much of his athleticism, as he still rushed for 279 yards last season. On a run-first team, which is what the Jaguars will be as long as Maurice Jones-Drew is running behind their physical offensive line, David Garrard could still give the team three more quality seasons."