* New York Yankees -- Agreed to terms with Mike Gallego (infielder) on a three-year contract.
* Pittsburgh Pirates -- Named Don Werner manager; Tom Dettore pitching coach; Rich Chiles hitting instructor; and Sandy Krum trainer of Carolina of the Southern League.
* St. Louis Cardnials -- Agreed to terms with Pedro Guerrero (first baseman-outfielder) on a one-year contract.
* Oralndo Magic -- Waived Stephen Thompson (guard).
* Portland Trail Blazers -- Waived Danny Young (guard). Activated Lamont Strothers (guard).
FOOTBALL (NFL) * New York Giants -- Fired Ron Erhardt (assistant head coach) and Mike Pope (tight end coach).
* Pittsburgh Steelers -- Signed John Jackson (offensive tackle) and Dermontti Dawson (center).
* San Diego Chargers -- Named Jack Reilly quarterback coach and passing game coordinator, and Sylvester Croom assistant coach.
HOCKEY (NHL) * Quebec Nordiques -- Recalled Stephane Fiset (goaltender) and Ken McRae and Kip Miller (forwards) from Halifax of the American Hockey League. Sent Mike McNeill and Stephane Morin (forwards) to Halifax.
COLLEGES * Holy Cross -- Named Chris Doyle offensive line coach.
* Illinois -- Named Tom Beck offensive coordinator and quarterbacks coach; Chris Cosh inside linebackers coach; and Dan Martin defensive backs coach.
XTC * Lehigh -- Named Dean Koski men's soccer coach.
* St. Lawrence -- Announced resignation of Joe Kimball (football coach) effective at end of the academic year.
* Texas Christian -- Named Bobby Etheredge assistant football coach.
* Texas Tech -- Named Steve Clark tennis coach.