If it's a stretch, then what the f*** is the point of arguing it?
.245/.300/.390 is like a .300 wOBA if you go by The Book's approximation. That's about -0.5 wins. To be worth 2 wins, with those stats + his career averages otherwise, over a full season, Goins would have to be worth approximately 10 defensive runs. That's Russell Martin, Chase Headley territory.
So, even with Goins' 99th percentile offensive projections, he'd still have to be Chase Headley on defense to be league average. If Goins' projections are to be believed on defense, he's probably worth about a win over a full season. In all, Steamer has him at 0.1. So:
Goins with ... 99th percentile offense + gold glove defense = average MLB player
Goins with ... 99th percentile offense + projected defense = Gordon Beckham/Munenori Kawasaki
Goins with ... projected offense + projected defense = pretty f***in bad
But yes, let's roll with Ryan god damn Goins.