Sure I'ld do it. A 70 inning decent reliever is worth having around, but can be found fairly easily (although you'll have to wait in the FA period to get a good deal).
Robbins isn't great, but he'll get on base decently against RHP and he's a very nice CF/2B glove. He has value.
Interestingly, Olmeda's 2nd season was better than his first, if you look at WHIP. I would think he's a year in and out 1.30 WHIP, 3.60-3.80 ERA guy. That has some value. He's decent.