That is a good list.
Don't leave out the importance of the sailor in the front of the boat, and how the 2 sailors interact with each other.
Also once a handful of teams have all the above items covered and the helmsman has the boat in high gear constantly winning can come down to a battle of will, mental fortitude.
There is also great chance to pass at the mark roundings. Being gifted at that on top of everything else can really help in the winning.