Tom Held has been at Defiance since 1999 with an overall record of 525-95. 14 WBL titles (including the 7 in a row, all undefeated run from 2007-2013), 18 sectional, 12 district, 5 regional, and 3 state titles.
Before that, Greg Inselmann was there from 1981-98, going 303-85 with 10 WBL, 10 sectional, 5 district, 1 regional, and 1 state title.
All all in all, since 1981 (39 seasons), Defiance has had 2 coaches, and an overall mark of 828-180 while winning 24 league, 28 sectional, 17 district, 6 regional, and 4 state championships. And of course, 4 major league players with numerous draftees and minor leaguers.
Much like Coldwater, the key is a well funded and supported youth baseball program from Tee ball on up. No kid is turned away, they'll find a place for you, everyone plays, and the emphasis at the lower levels is on team building, fun, and development.