Law and Order: SVU

I have alway been one of the biggest supporters of Law and Order: SVU, but lately, at least starting with the new season, episodes just haven't been up to par. I could understand when the first few episodes were slacking because Mariska Hagarty was on maternity leave and the chemistry between her and Christopher Meloni (Benson and Stabler) often drives the show. I was even willing to accept the shows pace when she returned because they had to re-establish the acting relationship. But now, about 3 months into the season, I can not make exuses anymore. The plots aren't as complicated or full of twists, they never use the assistant D.A. (in essence eliminating the order I love so much), and I am getting bored--which really bothers me. Any Law and Order fans have an opinion?