He is the current Chief Executive Officer of USA Track & Field (USATF), the national governing body of Athletics in the United States.

[citation needed][1] Siegel became President of Global Operations at Dale Earnhardt Inc. (DEI),[7] becoming the highest-ranking African American executive in NASCAR.

Siegel is the owner of Rev Racing, a development program in the NASCAR ARCA Menards Series and Advance Auto Parts Touring Series which participates in the Drive for Diversity program, designed to increase minority and female involvement in auto racing.

[4] The team was founded in 2009 and has fielded cars for minority drivers including Daniel Suarez, Darrell Wallace Jr. and Kyle Larson.

[8] Siegel has been criticized for his setting an unusually high salary for himself, creating deals through USATF that financially benefit him and his associates, and having little consideration for athletes.