I work as the sole web dev in a medium sized company. I have been performing well, and have been told in the past that another department head wishes to poach me to his team.
I was recently informed that I will soon be removed from under my current report to the person who wanted me, who leads a different team. This is news to my boss, who is sorry to see me leave. Aside from a change of direct report, my role will not be changing, at least on paper, and I will continue to be the sole subject matter expert in the company on my area.
How should I negotiate a pay raise or change in my workplace agreement given that I will be forced to sign a new contract to work under my new manager?
What right do I have to negotiate / push back on an offer presented in this way?