Re: The Georgia Panthers are vs The Georgia Panthers is
While a single team is often referred to as "is," when the team name is plural, we often use "are" and when the team name is singular, we often use "is."
So, the Miami Heat is, but the Detroit PIstons are.
You can look at the team's Web site and see how they refer to themselves. That's usually a safe bet.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.