ISLANDERS--Signed Mike Milbury, general manager, to a multiyear contract.
AROUND THE MAJORS The Phillies signed Ryne Sandberg, the interim manager, to a three-year contract..
Signed Ozzie Guillen, manager, to a three-year contract extension through 2008.
TORONTO MAPLE LEAFS--Signed Pat Quinn, coach and general manager, to a three-year contract extension.
KANSAS CITY ROYALS--Signed Tony Muser, manager, to a two-year contract extension.
Signed Gord Ash, president, baseball operations and general manager to a three-year contract.
HOUSTON ASTROS -- Signed Jimy Williams, manager, to a one-year contract extension through the 2005 season.
OTTAWA SENATORS--Signed John Muckler, general manager, to a three-year contract extension.
MINNESOTA TIMBERWOLVES--Signed Jim Stack, general manager, to a contract extension.
OAKLAND ATHLETICS--Signed Billy Beane, general manager, to a three-year contract extension, through 2008.
BOSTON BRUINS--Signed Mike O'Connell, general manager, to a five-year contract extension.
