It's a no-brainer as long as pursuit of the mediocre does not impede progress on the elusive brilliance.
Maybe just practicing implementation is the thing. If you can get in the habit of acting on the mediocre, acting on the brilliant won't seem so daunting.
For reals. That's kind of what Pavlina's post is about--ideas are pretty common and mostly worthless because all the hard work (or the sloggy work, anyway) is in the implementation. I think just ACTING is probably the way to go.