East Lake head coach Alex Estrada watches his team as Mater Dei Catholic High School hosted Eastlake in boys basketball Wednesday.
After 15 seasons and more than 300 wins, Alex Estrada has stepped down as boys basketball coach at Eastlake High.
He will be replaced by long-time assistant Marlon King.
In addition, Conrad Sun has been named the boys basketball coach at Serra and Paul Tessaro takes over at Mira Mesa.
"This is a good move for me and the program," Estrada said. "I'm going to go back to school and work on a degree in administration.
"I've run teams for years. I have a knack for running programs. This is the natural next step."
Estrada went 310-119 with Titans and was 133-23 in the Metro Conference with 10 league titles.
The Titans won a San Diego Section championship in 2001 and were the runner up in 2006.
King was a point guard on that 2006 team and has worked as an assistant under Estrada the past four years.
King had a successful college career as a point guard at Biola University.
"This should be a seamless transition," said Estrada, who will continue to teach health and P.E. at Eastlake. "Marlon is a good, young coach and really connects with the kids.
"Plus, I think this team is good enough to compete for a league title."
King will be an off-campus coach.
Sun, who replaces Corey Wright at Serra, has an extensive coaching background.
He was the head coach at Mt. Carmel for two seasons, then moved to San Diego Christian College for two seasons, ending in 2011.
He also worked for six seasons as an assistant coach at Santa Fe Christian and as the head coach at Village Christian in the Southern Section.
He played for the Taiwan National Team in the '80s.
Basketball practice opens Nov. 15 with the first games in early December.
Serra also sent out a notice that it has an opening for a head football coach.
The Conquistadors finished the regular season last week at 2-8. Brian Basteyns has been the head coach since 2004.