Do i have to give you the substitute teachers that are already a part of my pool?

Absolutely not, but you have that option if it makes sense for your school and process.   While it may be beneficial for your school to transfer employment responsibility to TeachersASAP for your current substitute teachers – having us be responsible for all W2, Income Tax, Unemployment Insurance, Professional Liability Insurance, Workers Comp Insurance – it is not mandatory that you shift your labor force to TeachersASAP.  Upon closer examination, you may find that this option may work to streamline your substitute activity and we would be more than happy to discuss how to make a transition of this kind as smooth as possible.