Got to agree with what others are saying with the scheduling. Every other matchday before the QFs they've held two mens' and two womens' matches on Chatrier, why not continue to do so. I understand that they want to spread the big matches to Lenglen too, but it doesn't really make sense when you end up either having to put a Frenchman in a French Open quarter-final against the defending Wimbledon champion, or the quarter final involving an eight time winner and world number one against last year's runner-up on a court other than Chatrier.
Even if they insist on having one on each court there's literally no reason to have it at the same time. Could easily have a schedule like this:
Chatrier: Women's QF not before 1pm, Men's QF not before 4pm
Lenglen: Women's QF not before 11am, Men's QF not before 1pm
So that those interested in the women can see both women's matches, same for the men's, and those interested in both can see at least some of each match.