Serna was an assistant coach at Chicago State and Fresno State before joining Budke's staff at Louisiana Tech. She followed him to Oklahoma State, where both have been since 2005.
During her coaching career, Serna has developed a reputation as a great recruiter.
“She was one of the best recruiters in the country,” said New Mexico coach Yvonne Sanchez. “Just an unbelieveable person.”
Yvonne Sanchez is in her first year as New Mexico's head coach, but was an assistant at the school for the last 11 years.
Yvonne Sanchez also played at Eldorado High School, and remembered watching Serna play for the Eagles.
Yvonne Sanchez also remembers intense recruiting battles with Serna. “We were recruiting the same kids that Oklahoma State got a few years ago, and I wouldn't talk to Miranda for a while,” Yvonne Sanchez said.
“She sent me an email saying she was glad I got the (New Mexico) job, and I sent her one back.
“We eventually sat down and talked, and gave each other a big hug.”
Yvonne Sanchez said Serna's mother, Nettie Herrera, is a New Mexico season-ticket holder.
Jim Littell, OSU's associate head coach who will take over the Cowgirls as interim coach, remembered Serna as a “tireless worker.”
“Our kids are totally devastated,” Littell said. “They love coach Budke and love coach Serna. A lot of the reason they are here is because of those two people.”