Again, both are bad. One can blame some of that awful pitching on luck while the other cannot (to an extent, anyway... Pelfrey's BABIP is .350). Given the situation, I'll take the younger guy who factors into the team's longterm plans over the guy who looks better largely because his HR/FB rate is at 3.7%. Once the weather warms in Minnesota, Pelfrey could look like the second coming of Jason Marquis. Pelfrey's GB rate isn't particularly good (43%) and at some point, those flyballs are going to start leaving the park. And at least Worley is striking out 2% more batters (~11.5% to ~9.5%). Once you look through their peripherals, I don't see a reason why one would demote Worley before Pelfrey (excepting the reason that you want to keep Mike around all season instead of exposing him to waivers, which I don't really care about at this point).