Tom Tango looks at pitchers facing consecutive batters with the same handedness versus batting from the alternate side of the plate. With the caveat that this is probably random variation, he notes that some pitchers are better when the lineup is stacked (consecutive same side), and some are better when the lineup alternates (consecutive different sides). He suggests the opposition might want to build lineups accordingly. There is one strange example, Tyler Glasnow:
Glasnow: RHH before RHH, RHH before LHH… in other words, stack RHH… unusual, I agree to stack RHH against a RHP… certainly deserves a deeper dive.
TangoTiger.com
Would a manager actually stack his lineup that way against Glasnow? This reminds me of a question I asked two major league hitters about Tom Glavine. In some years, Glavine looked like a reverse lefty; left-handed batters hit better against him than right-handed batters. When I talked to people in the ESPN newsroom about this, they tended to think it was due to small sample sizes or that Glavine only saw great lefty hitters. One day I asked Ray Knight about Glavine. Without any hesitation, he described Glavine as throwing a “dead fish”, a breaking ball with arm side movement. That pitched moved away from RHB, but sometimes into a good hitting zone for LHB. I then asked if this is known, why don’t managers bat more lefties against Glavine. Knight responded that managers would be raked over the coals by the press if they tried that strategy and it didn’t work.
A couple of years later, Greg Olson, Glavine’s catcher for a few seasons, came in for a Baseball Tonight audition. I asked him the same question, and his answer was identical to Knight’s answer, down to the “dead fish” and the likely press reaction to the strategy. One of my takeaways was that the press probably held a bit too much sway over strategy.
The writers today (as we’ve seen with Cy Young voting) as much more in tune with analytics, but stacking righties against a righty might be a bridge too far. There is also full game strategy to ponder. Stacked lineups might make stretches of the lineup vulnerable to relief pitchers who are worse against alternating handedness of batters.
If the strategy works, however, an opponent might force a good starter out of a game early, which I suspect leads to a win more often than not.