Before baking, if you have a lot of stray crumbs in the pan, I would suggest removing the chicken, draining out the excess oil and breadcrumbs, and then returning the chicken to the clean pan to avoid a burnt breadcrumb situation in the oven.
Also, if you really want the chicken to stay crispy, heat the sauce separately and add it over everything at the end. The chicken loses a little crispy exterior as it bakes in the sauce - I didn't mind it, but just something to think about if you want the crispy chicken.
Finally, I leave the zucchini noodles raw because otherwise I felt like they got too soggy and watery. When you add the warm chicken and sauce, the noodles will soften but keep just enough crunch to still be appetizing.