#1 held: we defined the tasks required to solve the problem at hand, and focused in on them.

#2 held: the teams were fairly small and homogenous.

#3 held, mostly. The project lead would occasionally withhold potentially-useful information, which felt like some kind of egocentric power play, but overall communication was very good.

#4 didn’t hold. We were all specialists in various areas. Fortunately, people rarely left mid-project.