Where I'd consider a (good) CTO should be somehow responsible for the high-level architectural decisions. Accumulate enough expertise and know-how (via "archite

Where I'd consider a (good) CTO should be somehow responsible for the high-level architectural decisions. Accumulate enough expertise and know-how (via "architects" or rather very senior engineers) and then discuss the pros/cons and at the end weigh each argument and decide what may work best.