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Jimmy Webster

Jimmy Webster

Head Coach

Josh Dillard

Josh Dillard

Freshman Coach

Darien Mooney

Darien Mooney

Junior Varsity Coach

Jimmy Webster - Head Baseball Coach

Coach Webster is in his 32nd season of baseball, his 30th season as a high school head coach and his fifth season as Head Coach at Grapevine High School. He also spent two years as the Director of Baseball Operations and Interim Infield Coach for Texas Tech University. In addition to his baseball work, Coach Webster is an Advanced World Geography teacher at GHS.

Coach Webster came to Grapevine from Denton, TX, High School, where he led the Broncos to the district championship and the postseason. Prior to Denton, he spent time as the Head Baseball Coach at Odessa Permian High School, Plainview High School, Lubbock Coronado High School, Lubbock High School, Devine High School and Floydada High School.

During his 30 years of high school coaching Webster has led 17 teams to the postseason. He has been named District Coach or Co-Coach of the Year nine times (including 2021), Greater West Texas All-Star Baseball Coach four times, Lubbock Avalanche Journal South Plains Coach of the Year twice and named Teacher of the Month three times. He has also served as the Region I Director of the Texas High School Baseball Coaches Association.

In March 2023, Coach Webster celebrated his 500th Career Win, a milestone that puts him in very elite company with a small group of Texas High School Coaches.

Coach Webster played high school baseball at Lubbock Monterey for legendary Hall of Fame coach Bobby Moegle – the winningest high school baseball coach in the nation. Webster was a member of teams that made consecutive trips to the state tournament in 1984 and 1985. He played collegiately at Lubbock Christian University and Texas Tech University for Hall of Fame coach Larry Hays.

Coach Webster is married to Kelly, a Dyslexia Interventionist in the HEB School District. They have two daughters, Tyler – married to Stewart MacDonell – and Sydney – married to Lennard Hansen. Jimmy and Kelly have two grandsons, Sam and Ben, born to Tyler and Stewart, and are happy to announce another grandson on the way from Sydney and Lennard.

Coach Webster has coordinated various charity events that have raised over $25,000 for the American Cancer Society, Make-a-Wish Foundation and the Challenger Baseball League.

Contact Coach Webster at

Brayden Blackwell - Assistant Varsity Coach

Coach Blackwell is in his seventh year as a high school coach, his fifth at Grapevine High School. He serves as Assistant Varsity Coach for the Mustangs. In addition to the baseball work, he is an assistant coach for the GHS football team and teaches Geometry.

He came to GHS from Clear Brook High School in Friendswood, TX, where he was an assistant coach for the football and baseball programs, helping both teams reach postseason play in 2016.

Coach Blackwell attended Coronado High School in Lubbock, TX, where he played baseball for Coach Webster. Coach Blackwell played baseball and received his business degree from Wayland Baptist University in Plainview, TX. He and his wife Kristen welcomed their daughter , McCall last summer, and the three share their home with their dogs, Charlie, Hattie and Ellie.

Contact Coach Blackwell at

Darien Mooney - Junior Varsity Coach

Coach Mooney, who has coached in GCISD for 25 years, is in his 17th year with the Mustang baseball program and is a Varsity Assistant Coach this year. He has coached the Freshman, JV Blue and JV Red teams during his time with GHS baseball. Coach Mooney was inducted into the GHS Baseball Hall of Fame in 2020.  During his 25 years in GCISD, he has spent 19 years as the Athletic Coordinator at Cross Timbers Middle School, where he coaches football, cross country and track.

He and his wife, DaiAnn (GCISD Chief Financial Officer), have been married for 27 years and have two children – Kyler, a recent Texas A&M graduate, and Madison, a senior at GHS.

Coach Mooney and his family love the game of baseball and are blessed to have the opportunity to be a part of the Mustang baseball family.

2 Peter 3:18

Romans 5:1-5

Contact Coach Mooney at

Jessee Gruber - Assistant Junior Varsity Coach

Coach Gruber joins the Mustang coaching staff this year as the Assistant JV Coach and will work with outfielders in the program.

Coach Gruber graduated Mayflower High School, in Mayflower AR, and attended the University of Central Arkansas and the University of Texas in Arlington.  A multi-sport athlete, Coach Gruber participated in track, baseball and powerlifting in high school, and played college football for Central Arkansas.

Coach Gruber has been married to his wife, Lauri, for 21 years, and they have three sons, Jason, Jared and Jacob.  The family enjoys vacationing in Colorado. In his spare time Coach Gruber enjoys bass fishing and hunting deer, dove and watching the "Hogs". 

Coach Gruber puts his players first as a coach, wants to teach players how to compete, be the best in everything they do, and most importantly have the very best time winning all the way to state!

Contact Coach Gruber at

Josh Dillard - Freshman Coach

Coach Dillard is in his 12th year as a high school coach and his seventh year at Grapevine High School. This year he is the Freshman Head Coach after serving as the Junior Varsity Blue Head Coach for five years.  In addition to his baseball work, he is an assistant varsity football coach, head freshman football coach, and teaches World Geography.

He previously coached at Salado, TX, High School, where he was an assistant coach for the 2016 4A state runner-up baseball team.

Coach Dillard attended Poteet High School in Mesquite, TX, where he played football and baseball. He graduated from Texas A&M University with a Bachelor of Science degree in Health and Kinesiology. While at A&M, he was a member of the Corps of Cadets, played on the corps baseball team, and coached the corps baseball team during his junior and senior years.

He and his wife, Jenny, have been married for 11 years and have a daughter, Kylee (7), a son, Caleb (3), and welcomed their newest family member, daughter Kelsey last season.

Contact Coach Dillard at