Rosenthal has a good article in (you guessed it) The Athletic about Brent Strom (Astros pitching coach) believing that they may be tipping pitches. https://theathletic.com/289905...-be-tipping-pitches/
"Strom...... was not suggesting the Red Sox were doing anything illegal through electronic means, something both these teams have been guilty of in the past. Rather, he was pointing to the Red Sox’s acumen at detecting anything opponents might be doing to tip pitches — old-fashioned inside baseball, the perfectly legal kind.
“This is a very good hitting team, and they’re very adept at picking up little things, much more so than most teams,” Strom said. “We need to be very cognizant of the little things, tipping-type things, things like that, that they’re very astute at. We’ve just gotten behind hitters.
“We have to re-evaluate and see if they’re seeing things that are maybe tipping the scales a little bit in their favor. These are veteran (hitters). And of course, they have the ultimate guy (Alex Cora) as their manager, who … he’s just very good at it. We just have to do a better job of watching what our pitchers do and getting ahead in the count.........
Strom said his belief the Astros might be tipping is based more on the pitches the Red Sox are laying off than the swings they are getting. On the other hand, it’s also possible the Astros are just pitching poorly, and that Cora and his players are inside Strom’s head......
Strom, while acknowledging the Red Sox are hot, said, “We’re making a lot of mistakes. Basically, we’re falling behind. We’re falling behind countless times.”