Site visit could help such departments think about how to move into the future. Perhaps program should also visit departments whose innovation has failed, to learn why. Read the literature about how institutions respond to change. Also, answers to some questions may also be known. Recruiting and alumni tracking are hard to do.
Textbooks play a big role in defining curricula.
Faculty autonomy in the classroom can be a barrier to change. Get someone from a successful department to visit for a semester. Project Kaleidoscope is a good intermediate step for fostering change. It is trying to think on a longer-term scale. Experience of calculus reform movement can be useful.