LaFayette was drafted by the St. Louis Blues in the 3rd round (65th overall) of the 1991 NHL Entry Draft. He scored his first NHL point, an assist, on January 14, 1994 vs. the Edmonton Oilers setting up a two-on-one for Craig Janney and Brendan Shanahan, and Shanahan scored the goal. The Blues had intended for LaFayette to play at their minor league affiliate, the Peoria Rivermen, for the whole season, but due to injuries, he played 38 NHL games with the Blues before being traded.