Coach EGIL OLSEN has helped transform Norwegian soccer froma backwater of part-timers playing in an out-of-the-way league, to World Cup finalists.  Not once, but twice and he has done it by adding technical skills and discipline to traditional kick-and-run tactics.  The new generation of Olsen trained players have been snapped up by elite foreign clubs, in turn enriching Norway's pool of top players.  Since Olsen, 55, took charge in 1990, Norway have won 42, drawn 22 and lost just 15 of 79 games.  He says he could well quit the international team after the World Cup and has been linked with a move to Wimbledon in England, now part-owned by two Norwegian businessmen.  Universally known as "Drillo" in Norway, a nickname inspired by his skills st dribbing when he was a player himself, Olsen has an intellectual approach to the sport, studying videos of his opponents to probe for weaknesses.  He has brought a professional approach to the game in Norway.  And the players have responded in kind.