Well at some point you can't make a baby in 1 month with 9 women. Adding resources to the project, especially if done late in the cycle when it becomes apparent

Well at some point you can't make a baby in 1 month with 9 women. Adding resources to the project, especially if done late in the cycle when it becomes apparent deadlines will be missed, is likely not to help much, and can even slow things done. I don't know their setup, so maybe they're just understaffed, but just adding resources without changing anything else rarely work, you just step on each other toes and communication becomes a huge overhead. Assets development is much more parallelisable on the other hand.