Principal shortages have become a nationwide issue, with education publications frequently discussing the devastating problem of not having enough high-quality candidates apply for administrative positions. The conundrum begs the question: Where have all the instructional leaders gone? To meet the challenge of keeping high-quality principal candidates coming through the front door, Capistrano Unified School District (CUSD) in Southern Orange County, California, has developed the Teaching Assistant Principal (TAP) program--a "build your own" school administrative program--that has produced hundreds of high-quality, well-trained administrators ready to experience the hard work and excitement of school leadership. This article discusses how California school district developed its own principal training program, producing administrators straight from its teaching ranks.