Hi Erin,
I find that "old dogs" stick to what they know and what has worked for them. They tend to be very uncomfortable with change. It tends to be more about the lack of knowledge than it does anything else. So, perhaps put the ball in their court. Say that you are trying to come up with different ways to improve the curriulum/teaching methodologies of the faculty, etc. If you appraoch it from a standpoint where you are looking to them as "Seasoned Experts", they may not be so defensive and against chnage. Most people buy into change a bit more if they have something to do with it. So, you can start by saying something like, "Hey Kathy, we have been looking into some more professional development opportunities for all of our faculty members. Since you have been here for a while and may have a better grip on what we are missing, I woudl like you to help me come up with some different ideas."
Just a thought! Good luck