Chris Young has played a lot of games vs RH'd starts, so it's more than just keeping him from cryogenically being frozen....
A brief history...
We signed Cody Ross in 2012 to play primarily against LHPs, but with injuries and his doing okay (.729) vs RHPs that year, he started 84 games vs RH's starters and 42 vs LH'd starters.
We signed Jonny Gomes for 2013-2014 to take Cody's original role as a platoon vs LHPs. He ended up wrestling the RH'd job away from Nava in the post season, before being traded mid-season 2014 during the great red purge. Again, things did not work out as planned. Gomes ended up starting vs a RH'd starter 22 times, which I suppose could be viewed as keeping him fresh, but I remember most were due to injuries or slumps by others. He started only 54 games vs RHPs, which seems low, but he was the FT'er by the World Series. His splits were not as wide as expected: .795 vs LHPs and .745 vs RHPs- both acceptable. However, his disparity in games started by a LHP vs a RHPs were stark: .889 vs .697.
In 2014, Gomes started just 16 games vs RHPs (.639 in those games) and 37 vs LHPs (.711 in those games) before being traded. His overall splits were .831/.494- a very significant differential.
Chris Young was signed for two years to provide a strong bat vs LHPs. He had started 47 games vs LHPs for the Yanks last year (.953 in those games) and 30 vs RHPs (.567). His overall splits were .972/.585- clearly a platoon player if there ever was one.
With Castillo flopping and Holt getting hurt and struggling, Young ended up starting more games vs RHPs than probably planned, then he got hurt himself. His numbers this year:
21 GS'd vs RHPs (.830 OPS in those games)
12 GS'd vs LHPs (.877 OPS in those games)
Splits:
vs RHPs: .734 (not bad)
vs LHPs: 1.042 (super great)
When Young returns, I feel he needs to start vs ONLY and EVERY LH'd starter. He's been great vs lefties for many years. His career splits are: .884/.705.