[5] From 1982 to 1990, Muscatell was boys' varsity basketball coach at Meridian HS in Laurel, Washington.

Muscatell earned county and regional "Coach of the Year" honors after leading Meridian to a school-record second-place district finish.

[5] At Meridian, Muscatell also taught physical education, math, psychology, and leadership between 1985 and 1990 and was also an assistant principal from 1986 to 1990.

[3] Muscatell ended his six-season tenure with a 36–133 overall record but had 21 wins in Big Sky Conference play, the most for any coach in program history.

After the 2017–18 season, Craighead reassigned Muscatell to a special assistant position where he oversaw budgeting, scheduling, travel, and other business operations.