I keep noticing that people are doing this in my league. All I can say is its not worth it. I got caught up in the Riley hype before and I learned my lesson after that. You can't judge a pitcher based on one or 2 outings.
People have recently picked up RA Dickey, Dubose, Maroths.
One team in ,y league even had Maroths and Dickey pitching Yesterday. I guess he wasn't too happy
But serously all you are doing is playing with fire.