Nibbler,
Did you step forward or did everyone else step back?
If your employer is large enough to hold an AOC, flying enough aircraft hours to make an AOC viable and wanting to take one on when others are looking (or being forced) to ditch theirs, then they would already know that they need an experienced person to implement an AOC.
Have they given you a budget, timescales and the aircraft they wish to operate?
I'd suggest your best option is to recommend that your employer take some consultancy from some of the more esteemed members of this forum who have helped others set up AOCs.
You've been handed a poison chalice, don't drink.