Final answer:
Low-performing schools face challenges with teacher turnover, lack of professional development, and difficulty in recruiting qualified educators, but not with adequate funding.
Step-by-step explanation:
The challenges that low-performing schools face in regard to their teaching staff include teacher turnover, lack of professional development, and difficulty in recruiting qualified educators. However, one challenge that they do not typically face is adequate funding. Adequate funding can help address other challenges, such as providing resources for professional development and attracting and retaining qualified educators.