The Jaguars are a solid football team in most respects, but they lack an explosive home run hitter to add that element of danger to their offense. That makes Harvin a great fit in Jacksonville.
Tim Tebow got the hype, but Harvin made Florida's offense go during his truncated time in Gainesville. He's a dynamic playmaker who can do damage in a number of ways--out of the backfield, catching the ball on the run and in space, returning kicks and even under center.
On top of all that, Harvin is a Gator. That should give the Jags a nice bump at the box office. This just seems to make so much sense on a number of levels, which is why it will never happen.