Here are a few considerations. A professional who has seen many children with similar issues and is familiar with interventions, is often chosen. This could be a counselor, ABA provider, speech therapist or occupational therapist. It could also be an educational consultant or physician. Another common person is an advocate that works at the school. In my son’s case it has been a school counselor during elementary years and the talented and gifted teacher during secondary.
A good babysitter or respite provider is very important. This could be a family member, friend or a person you hire from other families recommendation. It’s very important to have someone that can care for your child overnight so that you can get away with your spouse periodically.
There are so many skills to practice, it is important to have someone that can do this with your child so you can get a break. It also ensures that the skills actually get practiced with regularity. Many families feel it’s helpful to have a mother of a child with learning differences as one of team members. Many families have an advocate who understands the special needs world and can help the family navigate through the educational and therapy systems.
Let me know of any other team members you have and how they've helped you.