W/L stat is completely overvalued when appraising a pitcher's value.
That being said, I do agree that Greinke was the beneficiary of a little "irrational exuberance." I would have liked to have had him and I would have given up what the Brewers did, but I think we have more than enough pitching to get us by.
Now, I would love to see us pick up a legit LF and leadoff guy....perhaps one dude can wear both hats....