Literature Circles in Middle School?

Should Literature Circles be used in Middle School?  An article from Edutopia states that Literature Circles for her 7th grade class gave students passion and joy for reading.  Also they provide good collaboration among students and allows them to make choices about thier learning, which is very necessary.  Furthermore, they get to talk a lot and debate ideas.  Another main push for them mentioned is that they are fun.  Now I have a question, they sound great but how many people use them in their room on a daily basis?  I feel that I have so much curriculum to cover and we use Macomb Units in my school so how can I hold lit circles when they are all supposed to be reading the same book?  Anyone with any suggestion for me, because I would like to try it but have not used them before?