I am a major proponent of playing a defensive wizard at SS even he lacks a bat (esp if you have no other holes in your lineup). That said, your player is not all that great of a defender. He has a high number of + plays because of his solid range but he commits fair amount of errors because of a less than stellar glove and arm accuracy. If you are going to play a D only SS, I would find a better defender. Under NO circumstances would I play the other guy at SS, he'll kill you plus he sounds like a valuable 3B, don't waste that.
Summary: Find yourself a better SS. If you can swallow the .235 BA make sure its for a guy thats at least 85 in all defensive categories.