Although I can see David's point that it might be interesting to see what would 
happen, I would form new teams. One advantage I see to TBL is that students 
are able to practice the dynamics of teambuilding and learn to work with new 
people. In the real world teams may last longer than 15 weeks but they are 
often fluid with new members joining, and others leaving. Plus the average 
worker changes employers frequently. I like to think I'm helping the students 
practice the interpersonal skills they need to succeed in the future. A change of 
teammates at the start of the next semester would allow them to do that.

Dianne York, M.S., MT(ASCP)
Lecturer, Biology
Lincoln University, PA
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