Thank you for replying.
My position within the company required to organize and implement a new structure to position itself as a year round supplier in the market. This was written along with conversations and messages implying the authority to revise and/or change procedures within their current structure deemed inefficient towards reaching this goal.
The position and goals indicated on the document described my responsibilities which implies a long term commitment in order to begin phasing these strategic steps into place. Terms of salary, benefits, bonuses and vacation/personal time awarded were also laid out once negotiated by both of us.
Drilling more into the politics, they repeated TNT authority specifically towards the performance evaluation of my direct report, which was essentially my boss. I was recruited by an officer of the company (not my boss) and my communication throughout my tenure was with him and an upper management leader. It was clear, which was evident with other employees that I came to know, my direct report was not performing as they would have liked. This increased the confidence and ability to observe and report what I was hired to do without the fear of stepping toes given my assignment from the top.
Tension began right away with me second guessing current procedures and friction implementing new ones., which eventually led to my dismissal by my direct report. (Mind you, on record this person had no experience in the industry which is why I was brought in) No reason given other than his statement "I'm no longer seen in part of the company's future "
I feel the objectives presented to me, described as responsibilities and duties for the position, are bound to a long term commitment by industry standards. The politics itself is a questionable fight in the eyes of the law, but I feel strongly that I was erred by my dismissal given this agreement

