"If a tipping conspiracy were in place, one would expect that Rodriguez and rival middle infielders in games he played to have hit better in low-leverage situations than in high-leverage ones. Using a fairly loose definition of high leverage as a L.I. above 1.5 and low leverage as below 0.7, the data provide a resounding answer: either no tipping was going on or it was pathetically ineffective.At the end of the day, Roberts can always fall back on what Yankees fans have so often during the Alex Rodriguez era, by yelling, albeit in not so few words, "Score-board! Score-board!" The advance alone was probably more money than you or I will see any time soon. (Subway Squawkers had the definitive takedown of the Roberts book.)
"Contrary to his reputation as a choker, Rodriguez was actually at his best when the game was on the line as a Ranger. According to data compiled by Sean Forman of Baseball-Reference.com, his combined on-base and slugging percentages (O.P.S.) from 2001 to 2003 was 1.076 in high-leverage situations, compared with 1.017 for medium leverage and .982 in low leverage. Opposing second basemen and shortstops showed the same pattern. They registered an .899 O.P.S. when leverage was high, .825 when it was middling, and .817 when it was low. Unless Rodriguez’s behavior was even more nefarious — tipping only when it mattered most — the numbers give no reason to believe he was involved."
Rodriguez Didn’t Tip Pitches, Numbers Indicate (Dan Rosenheck, The New York Times)