EL SEGUNDO - Byron Scott will be introduced today as the Los Angeles Lakers new coach, returning to the team he played with for 11 seasons, including as the starting shooting guard on three NBA championship teams in the 1980s."I am ecstatic to once again be a Laker and to have the opportunity to work alongside Mitch and the Buss family," Scott said on Monday, after Mitch Kupchak, the team's general manager, announced that Scott had signed a multi- year contract.