There actually was a Daytona Speed indoor football team that played at the Ocean Center for a couple years. Great name, but not much community support.
I've always thought Seattle did a great job with all their pro teams: Seahawks, Supersonics, Kraken, Mariners, Storm, Sounders. Not a miss in the bunch.
Of course, the NFL whiffed when they added the Jaguars (Jacksonville, a place not particularly known for a Jaguar population), and Panthers (Carolina, which has no actual panther population while Florida does indeed have a notable and endangered state panther). Not as bad as the Utah Jazz somehow refusing to change their name after they left New Orleans, but at least NO has the Pelicans now.
Actually the current lineup of IFL teams has some solid names, including the Iowa Barnstormers and their amazing and goofy goggle helmets, the Quad City Steamwheelers, which I couldn't actually tell you what four cities they represent but I know for darn sure there's a river there, and the Tucson Sugar Skulls, who just fired the Day-of-the-Dead clip art cannon at their team and it all sort of worked out okay.
Wow, thinking more about it, the Jags really stand out as a miss in an otherwise fairly solid state of names, even for our major college programs. Marlins, Devil Rays, Magic, Heat, Dolphins, Buccaneers, Hurricanes, Lightning, Seminoles, Gators, and the NHL finally got the Panthers name after the NFL completely blew the easy layup.