Toushay about the 2005 team
This comment sort of opened up a can of worms for me. I started looking into what meager pinch hitting statistics are easily available and it appears that pinch hitting is, generally speaking, pretty small peanuts. Exceedingly small, and actually detrimental in some cases.
This is a
good but old BP article on the topic:
and further on, this:
1 run per 60 PAs on average - when replacing a lefty with a righty, or vice versa.
To put that in perspective, the Twins averaged 70 PH ABs since 2010 (unfortunately ESPN's PH tracker doesn't track walks and PAs). Call it 100 PH PAs on average. Assume Gardy is doing a LHB-RHB or RHB-LHB swap 90% of the time (which would be difficult to do if he is replacing a switch-hitter, eg. Florimon), and you have around 1.8 runs gained in those situations.
Further on, the BP author writes that in the 20% (10% in AL) of PH appearances where a PH replaces a same-handed hitter, the PHer can be expecte to perform worse than the player he's replacing around a third of the time (after accounting for the PH penalty). But, there's still a small gain overall.
So, based on this, we're looking at something like 2 whole runs over the course of a hundred PH PAs in a year, as an estimate. An argument could definitely be made that there about a hundred ways to better use that 25th roster spot besides carrying a Colabello or even a Thome.