Please--fire Dick Enberg. Now.
It enraged me that he got away with making a sexual remark to Kim Clijsters right after she won the 2005 U.S. Open (I wouldn't have lost any sleep if Clijsters had slapped him). Since then, he has repeatedly made remarks about female players' bodies, and not in a tennis-oriented way. Today, his expression of interest in Serena Williams' backside was the end-all.
The repeated public expression of lust is not only inappropriate, but also demeaning to the tour's women (well, maybe not Nicole Vaidisova or Ashley Harkleroad), who already have so much trouble getting people to watch them for their athletic ability.