I'd simply move the Spanish Grand Prix. Barcelona is a little bland and the teams frequently test there, so it's never really that interesting. The only reason they're for two races is because of Alonso. A country should only have one Grand Prix, in accordance with the Concorde Agreement, full stop. Germany only had two because the 'Ring was counted as the European/Luxembourg and Italy because Imola was San Marino. It could be argued that France has two rounds, but I think Formula One needs a little diversity, and ironically I think Germany and Italy are on the right course. By alternating the circuits every other year (or even sharing it between three venues), I think we'd get a little more interest going. There's too many good circuits out there that are going to waste.