Many have assumed Mark Teixeira is hitting the ball due to the return of A-Rod and the 'protection' he provides. However, there are several points that seem to refute that notion:
1) Tex always hits better in May than in April. His career batting line in April is .249/.349/.433. In May it's .294/.378/.544. In fact, April is his worst month of the whole season.
2) Tex is not seeing more fastballs since A-Rod's return.
3) Several studies by major baseball analytical minds -
However, there is an intriguing study that suggests that it might exist.
Common sense says it does. The studies (largely) say it doesn't. What's your take?