Jill Holdren begins the second season of her second stint as the top assistant coach for Kassie Bellaver's women's volleyball squad. She spent seven seasons alongside Bellaver from 2007-13, before leaving for a head coaching opportunity at Division III Immaculata University in 2014.

A native of Chester County, Holdren will help run practices and assist with game strategy, recruiting and various duties related to student-athlete academics and team travel. 
 
Holdren completed five seasons as the women's volleyball mentor at Immaculata compiling a 55-62 overall and 27-23 mark. She helped guide the Mighty Macs to the playoffs during all five seasons, including two appearances in the semifinals.

Holdren was honored as the Colonial States Athletic Conference (CSAC) Coach of the Year during her first campaign with the Mighty Macs in 2014. Immaculata posted an overall record of 18-9, marking a program record for victories in a single season. The following year, the Mighty Macs had a program-best 8-3 mark in CSAC matches to secure the fourth seed in the CSAC Tournament, and advance to the semifinal round.

Immaculata players earned 10 all-conference honors during Holdren's tenure on campus, including five second-team selections.

Immaculata was also honored for its academic achievements, garnering the CSAC Team Academic Award in 2014, as well as being recognized with the AVCA Team Academic Award four times.
 
Holdren served as the assistant women's volleyball coach at West Chester from 2007-13, helping the Golden Rams to six Pennsylvania State Athletic Conference (PSAC) Tournaments, including a semifinal appearance in 2011. The program won a single-season record 28 matches her first year on campus (2007) and reached the 20-win plateau all but once in her time on the sideline.
 
Aside from collegiate coaching, Holdren is actively involved with the Delaware United Volleyball Club where she has coached different teams for the past 13 years.
 
Holdren played collegiately for four seasons at Wilkes University as a starting middle hitter. During her senior year of 2005, Holdren played in every set and was second on the team in kills (271) while leading the Colonels in service aces (56). She graduated from Wilkes in 2006 with a bachelor's degree in Psychology.