Hence, if you believe in the value of interdisciplinary approaches, and can convince reviewers, you can overcome suspicion by making it work. I can't emphasize enough the importance of leading the way with successful granting. Barriers, here and elsewhere 1. It's not the majority one. It's not even a very popular one, believe me.
Most people are too risk-aversive to try it out.
I have been shocked and disappointed to find this out. Related to the above, participation of even great people is hard to get unless you give them something tangible. This is especially true of those who see themselves as interdisciplinary already. I find that the majority of 'participants' only really get into it if they think they'll get something. Long experience has taught me to count on a core of people who are committed, and to treat the others as valuable resources I'll have to pay for in some way.