He also served as a substitute for Dave Sims on Sunday nights when his other broadcasting endeavors leave him unavailable .
David was one of Westwood One 's NFL voices , having replaced Bill Rosinski in the booth for the Sunday doubleheader coverage the network carries .
David also served as a substitute for Dave Sims on Sunday nights when David 's other broadcasting endeavors leave him unavailable .
David was one of Westwood One 's NFL voices , having replaced Bill Rosinski in the booth for the Sunday doubleheader coverage the network carries .