The 2014 calendar was a good calendar but this is what I would have done if I was in charge for F1.
Pre Season Tests:
20th - 23rd March
Pre Season Test 1 - Jerez
3rd April - 6th April
Pre Season Test 2 - Sakhir
10th April - 13th April
Pre Season Test 3 - Sakhir
2014 F1 Calendar - My suggested Calendar:
April 27th
Australian Grand Prix
May 11th
Singapore Grand Prix
May 18th
Malaysian Grand Prix
June 1st
Chinese Grand Prix
June 8th
Japanese Grand Prix
June 22nd
Monaco Grand Prix
June 29th
Spanish Grand Prix
July 13th
British Grand Prix
July 20th
Belgian Grand Prix
August 3rd
German Grand Prix
August 10th
Austrian Grand Prix
September 7th
Hungarian Grand Prix
September 14th
Italian Grand Prix
September 28th
Russian Grand Prix
October 12th
Canadian Grand Prix
October 19th
United States Grand Prix
November 2nd
Brazilian Grand Prix
November 16th
Bahrain Grand Prix
November 23rd
Abu Dhabi Grand Prix