The Texas Rangers traded Adrian Devine, Tommy Boggs and Eddie Miller to the Atlanta Braves.
The Atlanta Braves sent Willie Montanez to the New York Mets.
The Texas Rangers sent a player to be named later (see below) and Tom Grieve to the New York Mets.
The Texas Rangers sent Bert Blyleven to the Pittsburgh Pirates.
The Pittsburgh Pirates sent Nelson Norman and Al Oliver to the Texas Rangers.
The New York Mets sent Jon Matlack to the Texas Rangers.
The New York Mets sent John Milner to the Pittsburgh Pirates.
The Texas Rangers sent Ken Henderson (March 15, 1978) to the New York Mets to complete the trade.
Eleven players, four teams. That's a lotta trading!