PLATOON

A unit of thirty to forty soldiers typically commanded by a lieutenant and forming part of a company.

A group of self-driving vehicles travelling in a close convoy and communicating electronically with each other.

To alternate starts with a teammate of opposite handedness, depending on the handedness of the opposing pitcher

"Taylor has been hitting poorly against left-handers, and Morgan has been hitting poorly against right-handers, so they will platoon."

Of self-driving vehicles: to travel in a close convoy, each vehicle communicating electronically with the others.