Vince Brown, the Foothill High baseball coach,...

Vince Brown, the Foothill High baseball coach, will assume the school’s athletic director duties in June with the retirement of boys’ Athletic Director Bob Osborne at the end of the school year.

In addition, school officials said Jerry Whitaker, the girls’ athletic director, will become associate athletic director, also in June.

Brown is in his first year as Foothill’s varsity baseball coach. He had been a baseball coach at Tustin High for seven years and at Woodbridge High for three years.

Osborne, who was Foothill’s athletic director when the school opened in 1963, has worked in that capacity off and on for the last 27 years.

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Costa Mesa has added three coaches to its spring sports staff, athletic director Jerry Howell announced Monday.

Jon Carlew becomes the boys’ volleyball coach; Hillary Royer takes over boys’ tennis; and Carrie Nelson, a student-teacher at Costa Mesa, becomes the softball coach

Carlew and Royer are walk-on coaches.

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Esperanza’s Kelly O’Connor and Trabuco Hills’ Darnesha Griffith, who finished one-two in the triple jump at the state meet last year, head a field of more than 50 Orange County prep athletes competing Saturday at the 37th Los Angeles Invitational track and field meet at the Sports Arena.

Other state-meet qualifiers from the county competing Saturday: Tustin’s Dominique Degrammont (50-meter high hurdles), Huntington Beach’s Jess Strutzel (880), Brethren Christian’s Steve Michels (pole vault), Mission Viejo’s Ashley Bethel (long jump and 50-meter hurdles) and Huntington Beach’s Summer Shaw (880) and Jennifer Spahr (seeded mile).

Also on hand will be Buena Park’s Heather Garritson and Fountain Valley’s Angie Winkler in the girls’ two-mile run.

The Los Angeles Invitational, formerly called the Sunkist Invitational, marks the beginning of track and field season. The high school portion of the invitational runs from 11 a.m. to 5 p.m., then resumes at 8 p.m. Tickets are $23 for reserved seats on the lower level, $10 for unreserved seats.