Back to Bonn...same department...different company

One year of my life is over again, I am 24 years old and I am working on my diploma thesis in Bonn. Comeback to my old supply chain management team was a very pleasant occasion and I really like it here. The company has merged with its mother again so now I am an external employee of Deutsche Telekom instead of T-Mobile International. Nevertheless, this does not change anything on the fact that I chose a really good and interesting topic for my thesis: Collaborative planning in supply chain management; and right now I am in the phase of data and information gathering, studying, reading.....Plus there is another important thing knocking on the door....what could it be....the decision about my future career?