Does your exercise instructor think he or she is "all that"? There are plenty that think they know it all... even if they don't. Does your exercise instructor think he or she is "all that"?There are plenty out there that think they know it all... including offering nutrition advice and rehab information.How do you know if your instructor is not up to par? What should you do if she is not what you were expecting?Grace Desimone is the consummate expert on these issues as she is the Group Fitness Director for Plus One Health Management and the Editor of ACSM's Resources for the Group Fitness Instructor.Listen in as she gives you seven reasons your group exercise instructor isn't all that. Here are some of her best tips to think about. Not certified Routine rarely changes Doesn't offer modifications Focuses on his/her own workout Can't hear instructions over music Ignores (or looks down upon) newbies Never discusses proper form