There is actually none. You create your own advantage:
There are 3 things:
1. Model - find a new environment to learn what you have not learned before. The similar environment can not give you that opportunity.
2. Mimic similar experience. Get experience. Pick up the phone. Make the call.
3. Master. Excel in what you are good at. Just a little bit better. Multiply yourself
It is great that I had the same initial experience. Being a pharma rep.
It is great that I had the same initial experience. Being a pharma rep.