At the time both Guerrero and Colon were considered the top hitter and top pitcher in baseball and the LA Angels had never been known for going after these type of players unless they were near the end of their careers (Reggie Jackson, Doug DeCinces, Bob Boone, and Fred Lynn come to mind). The Angels never signed players that were at the top of the market so it created a major buzz in Anaheim.
Both Guerrero and Colon paid immediate dividends as they help lead the Angels to back-to-back AL West Championships in 2004 and 2005.