For my work I’ve never found myself sitting around with nothing to do because there’s always so much review of the generated code that needs to be done
The only way I can imagine needing to run multiple agents in parallel for code gen is if I’m just not reviewing the output. I’ve done some throwaway projects where I can work like that, but I’ve reviewed so much LLM generated code that there is no way I’m going to be having LLMs generate code and just merge it with a quick review on projects that matter. I treat it like pair programming where my pair programmer doesn’t care when I throw away their work