Todd Jones pens a piece for SportingNews.com on tipping pitches:

When Cito Gaston was managing in Toronto, he had his bench pick apart the pitcher. One guy would study the pitcher's hands, one would study his feet, one his cadence between pitches.

When Roberto Alomar signed with Cleveland (after playing with the Blue Jays and Orioles), a funny thing happened. The Indians suddenly became good at studying pitchers. Derek Bell, another former Blue Jay, went to the Astros and the same thing happened. He used to tell me after an inning he could call every curve I threw. To this day, I still have a habit of looking toward third base before I throw a curve, and Bell could pick that up from left field. So you know others picked it up, too.

I've thought for a while that teams should assign a former hitter to sit in the stands behind home plate and look for this sort of thing in the teams own pitchers. Catch the tips before the other team does, and the club can work on fixing the problem.