No trust, no risk. I did some nosing around about trust last year when a colleague and I got interested in telecommuting. A number of useful resources came up. I'll provide some below. 1 Charles Handy is among my favorites.
Trust demands learning and openness to change.
Trust requires leaders. I find Handy's article a useful point of departure for discussion or dialogue. At a minimum, this exercise provides a working vocabulary for talking about behaviors that can be linked to trust. Chartier, M.R. 1991. 3 HRDQ has an instrument on trust, even has some items that focus on telecommuting.