[kai]

Well reading the rule as adopted the DPCR is home team choice and the sole person who matters as pitch count goes. Umpires have no authority at all on pitch counts, which means any dispute always resolved by what designated person says. This will lead to some issues but with 120 limit probably not many. 120 pitches is a lot of pitches for a pitcher to throw even in mid-season form, most will limit kids to 100-110 . As far as rest goes most coaches will abide by it, but most the coaches I know do actually care about health of their players even without exchanging pitching information.