This works every time. If you just need a few holds with no risk, find and draft a lefty specialist or two. They throw a third of inning Monday and do it again on Tuesday. Lefty specialists always lead the league in appearances. There are at least 20 of these guys and they have the most job security of anyone, you just can't expect anything but holds from 'em.
I'm not just the president of the Cornbread Maxwell Fan Club, I'm also the only member.