Darnell and Dean are soft-tossing lefties, I don't think they can even hit 90 MPH. They may be able to increase their velocity as a reliever, but they're still going to be your traditional junkballer that possibly could miss bats in AAA but usually can't get batters to do the same at the MLB level. Look at Tommy Milone who was mowing down batters in AAA yet doesn't miss many bats at the MLB level. If the options were sparse and the team was in the gutter, sure, you might as well give it a shot, but we can be relatively confident in the types of pitchers these guys are and they are not late-inning relievers, which is what this team needs. This team doesn't need more middle relief options, the whole pen is full of those guys already; Fien, Pressly, Tonken, Graham. There are better options both internal and external that should be vetted first.