Gabbard did nothing at the MLB level, and Kottaras is a below-replacement level catcher, and you hyped both incessantly. Neither are wins.
And you're flat-out lying about the "guys you've gone bonzo for": Gabbard, Kottaras, Hunter Jones, Tug Hullet (let's just go ahead and say anyone who's played for the Royals), Lars Anderson the spectacular flameout, Reddick the one-year wonder (and you banged that drum HARD), Che-Hsuan Lin and all his offensive suck among others i'm sure i could find if i had the time for it.
And you've only hit on Nava. 1-for-the-universe.