[Al Skierkiewicz]

In no particular order...
Well practiced drivers.
A robot that is designed to play the game from the beginning.
Luck.
A robot that doesn't break at a critical time or match.
Some more luck.
Partners that compliment your strengths and weaknesses.
A great strategy team taking good data on all teams.
Luck of the draw, i.e. either picking or getting picked by one of the teams high on your pick list.
A good coach who understands game strategy and doesn't get caught up in watching the match.
Luck that one of your picks is still around for the second draft.
Being able to switch from offense to defense as needed for a particular alliance.
Having one of the above infect an opponent at a critical time.
Luck!

Think about this year. Good scoring robots, good auto modes (one better than the other), fast minibots (one the fastest in the division), fast robots, good defensive moves, good data on our opponents for strategy, great operators and human players, and experienced coaches who worked together. Any of the top alliances on any division could have just as easily put some or most of these attributes together for success.