He's hit RHPs better this year, so it's hard to say now, that he should only face LHPs.
Since Beni struggles vs lefties, maybe that still should be the plan for the second half of 2017.
I can't see Young being offered a contract this winter. I doubt Brentz is in the 2017 picture, but if he is, it will be (IMO) as minor league depth.
He's not on the 40 man roster currently, so he will have minor league FA rights this winter. I'm pretty sure someone will give him a better shot at making their 25 man roster than we can. We may just go with Holt as our 4th OF'er or sign a cheap FA that can back up 3B and maybe 1B while giving us LF depth.
Note: other minor league FAs:
Jesse Barfield, Brian Bogusevic, Bryce Brentz, Dan Butler, Ryan Court, Jacob Dahlstrand, Matt Dominguez, Shawn Haviland, Williams Jerez, Kyle Kendrick, Deiner Lopez, Heiker Meneses, Edgar Olmos, Mike Olt, Mitchell Osnowitz, Jhonny Peralta, Tim Roberson, Jose Sermo, Aneury Tavarez, Herny Urrutia, Elih Villaneuva, Marcus Walden, Jordan Weems