Seeing that this is already the fifth season, it would indeed make sense for Florrick and her associates, present and former, to start losing some momentum.
It often happens , quite naturally, around the fifth-sixth season of a series, once the characters have passed their 'best-by'-date.
Not yet in 'The Good Wife', however, much to my amazement! Not only is the plot not spinning out of control (everyone sleeping with everyone), it's actually tightening up and adding a restrained, tongue-in-cheek sense of humour.
Spoiler-alert : Having turned Prince Charming into a JR Ewing-like villain, all the while maintaining the basic tension of a frustration couple is nothing short of TV genius!