I put this in the Future Suggestions section. Sounds a lot like something I'd like to see as well for batters. Have two options, force start and force utility. If you select force utility, have options (maybe check boxes for each position) that you can check, so the manager forces him into a utility role at whichever positions you choose.
Go add your thoughts in that thread. Maybe if enough people get behind it, they'll give us more force role options in the future.