This bug exists with Backyard Basketball (the first installment for PC).
When a new season is attempted to be created, the game crashes after player selection WITHOUT FAIL. It does not matter who you select or which team you play as, the game cannot save a new season ("coach"). I am using v1.8.1 English, and am running ScummVM on Windows 7.
The game is not supported as it lacks an important piece of code from U32 DLL. No immediate plans for working on the game though.