While I am not a big fan of listicles (FYI : 1 is also a listicle), I strongly agree to Bill Gross' findings around startup success and failure.
You can have an A team , but everything is a function of market opportunity and the timing. In fact, most of Unicorns today exhibit this.
Surely, watch this video and evaluate where you stand. You can always play with other variables, but can't manipulate the one that matters the most.