Melancon has a career ERA, mostly achieved in Houston. of 3.50. You have to adjust that upward for pitching in the AL and upwards again for pitching in the ALE.
Bowden has a career ERA of 5.65. He hasn't shown us any talent.
Albers has a career ERA of 5.06. He had one half of one good season with us.
I don't see the talent level in the pen you see. Its BELOW AVERAGE. That will not make it possible for even the best manager to pull the rabbit out of his hat.