So in reply to myself, I think I found out one way to accomplish what I want to do and its not by editing the lifecycle. What I've found is that I can define the specific workflow I want to be associated with the specific life cycle by defining it at the Site level via utilities>promotion preference management. From there you can select the state of the lifecycle you will be moving to and select what workflow you want associated with it. This may be newbie knowledge however as I'm basically self-teaching myself windchill administration as I can't find any good resources on the subject. Here are pictures of the lifecycle I'm working with and the promotion preference management screen:
