Teachers' Teacher Becomes student

In my interview with the UT niews, I expressed my interest to work with TPACK (see the interview in this link): http://www.utnieuws.utwente.nl/new/?artikel_id=75136 . I am thinking of doing some researches to find out if TPACK model is enough to develop a competent teacher. How best can the TPACK model be integrated in the teachers training program? Should a teacher learn the whole TPACK model as a single subject or can be taught each part of the TPACK separately and integrate the different pieces in the teaching practices? How will teachers be monitored to find out if they integrate it properly? How can we describe the other components such as TPK, TCK and PCK? Should teachers' training colleges introduce a lesson to teach TPK, TCK and PCK as a different subject matter? Because I think most of the colleges are currently teaching each component of TPACK (Technology, pedagogy and content) as an independent discipline. I am curious if what is described in the TPACK model can be easly put into practice.