Bob Sierra is entering his tenth year of coaching defensive backs at CMS.  Born and raised in Compton, CA, Coach Sierra began his coaching career in 1985 and has been a key member of the staffs at various high schools and colleges.  An excellent technician, Coach Sierra is regularly called upon to contribute his talents as a football camp director.  He spends the summer working at camps across the country, including the Matt Leinert Football Camp, Stanford University, QBR, and the Anthony Munoz Football Camp.  A three-sport athlete in football, wrestling and track at Norwalk High School, Coach Sierra is dedicated to the recruitment and instruction of exemplary scholar-athletes to compete at Claremont-Mudd-Scripps.  He looks forward to helping propel the Stags to a conference title and post-season play in 2011.

In the off-season, Coach Sierra is an events manager for Claremont-Mudd-Scripps, responsible for the coordination of large-scale athletics events and national competitions.  He resides in Claremont.