here's an exciting AI prediction: AI is going to enable bring back smaller (single pizza size?) teams!
small teams are mighty and can move really fast. but eventually run into a limit of needs more hands on keyboard to produce more
however, adding people also inadvertently adds more coordination overhead which eventually slows teams down (the jump from 5 to 6 people brings less productivity than 2 to 3 because now you need to also communicate about what everyone is working on, make sure not stepping on toes, etc)
this is where AI is super powerful, allowing fewer people to drive more results, without slowing down overall per-person productivity