Final answer:
The most pressing challenge in implementing a peer coaching plan is managing schedules to allow for collaboration without extending teachers' workdays. This requires careful planning and flexibility in school scheduling.
Step-by-step explanation:
The most important logistical challenge for school administrators preparing to implement a peer coaching plan to assist experienced teachers to meet new district expectations is managing schedules to make time available for collaboration without adding to the length of their workday. Such a challenge involves aligning the teachers' availability with the coaching sessions while ensuring that this does not interfere with their existing responsibilities or extend their working hours. Given the complexities of school calendars and individual schedules, this necessitates careful planning and potentially creative solutions to find mutually agreeable times for coaching, which is essential for the program's success.