Title is misleading, that is not what the study really suggests. That study also doesn't do a good job at discriminating between causality and consequence. None

Title is misleading, that is not what the study really suggests. That study also doesn't do a good job at discriminating between causality and consequence. Nonetheless, they are careful in their conclusion and suggests that it is more an organic way of doing things. Smaller teams are more focus and will work with a lot less, and the PI will try to get famous, so new stuff it is. While bigger team are going to carry own, try to get it to the next level. It's lot more incremental, and that is the way it should