I feel like the schedule between the French Open and the US Open is too compressed. I wouldn't mind a mini-break between the French Open and Wimbledon. Move the meaningless clay tournaments (like Bastad, Gastad, etc.) to immediately follow the French Open and then a 2-week break for all tournaments. Then, start the warm-up grass tournaments (Halle, Eastbourne, etc.) in the first half of July. Wimbledon follows in late July/early August, then the US Open swing until mid-September, then the US Open in late September/early October. (So basically the grass season onwards, everything starts a month later). Trim the fat in the fall schedule, get rid of everything but the Shanghai Masters and Paris Masters (for the WTA, get rid of everything but China and Wuhan). Finally, the ATP and WTA Finals. This would make for a more exciting/watchable 2nd half of the season. Players would be more fresh for these events, and you will definitely see a much higher quality of tennis.